{"title":"Rainwater Harvesting \u0026 Storage","description":"\u003cp\u003eThe Waterwise range of Harlequin systems capture clean rainwater straight from your roof, storing it safely and efficiently for when you need it, whether you’re watering the garden, flushing toilets, or topping up tanks. Designed to be easy to install and low maintenance, our range suits everything from small domestic setups to larger commercial properties looking to boost their water efficiency.\u003c\/p\u003e","products":[{"product_id":"rainwater-harvesting-kit-a-200m2-filter-calmed-inlet-and-siphon-overflow-254010","title":"Enduramaxx Rainwater Harvesting Tank Kit A – 200m2 filter, calmed inlet and siphon overflow","description":"\u003cp\u003eFilter kit A is designed for roof sizes up to a maximum of 200m2.  It comprises a garden filter unit, siphon overflow and calmed inlet.\u003c\/p\u003e\n\u003cp\u003eRainwater flows into the filter basket where debris is collected.  Filtered water passes through a calmed inlet at the bottom of the tank so as not to disturb any sediment.\u003c\/p\u003e\n\u003cp\u003eCalmed rainwater entering the tank oxygenates the water and help to keep it fresh by preventing anaerobic decomposition.\u003c\/p\u003e\n\u003cp\u003eFinally the overflow siphon, which incorporates a skimming inlet, skims the surface water and removes debris such as oils and other floating contaminants. This also improves the quality of the stored water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA total retention rainwater filter with integrated dirt collecting basket\u003c\/li\u003e\n\u003cli\u003eDesigned for roof sizes up to a maximum of 200 sq metres (per kit)\u003c\/li\u003e\n\u003cli\u003eEasily removable filter basket\u003c\/li\u003e\n\u003cli\u003eSuitable for garden watering\u003c\/li\u003e\n\u003cli\u003eIdeal where no sewer connection exists\u003c\/li\u003e\n\u003cli\u003eFilter unit weight 2.2 kg\u003c\/li\u003e\n\u003cli\u003eSiphon overflow with skimming inlet\u003c\/li\u003e\n\u003cli\u003eSiphon overflow pipe to fit a 130 mm hole in storage tank wall\u003c\/li\u003e\n\u003cli\u003eCalmed inlet to prevent incoming water disturbing any sediment in tank\u003c\/li\u003e\n\u003cli\u003eCalmed inlet also ensures fresh water is supplied to lower area of the tank resulting in complete and regular replenishment of stored water\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57108566409589,"sku":null,"price":289.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Screenshot2026-04-28110437.png?v=1777370718"},{"product_id":"rainwater-harvesting-kit-b-450m2-filter-calmed-inlet-and-siphon-overflow-254020","title":"Enduramaxx Rainwater Harvesting Tank Kit B – 450m2 filter, calmed inlet and siphon overflow","description":"\u003cp\u003eFilter Kit B has been designed for roof sizes up to a maximum of 450m2 and comprises a two stage rainwater filter unit, siphon overflow and calmed inlet.\u003c\/p\u003e\n\u003cp\u003eOn entering the filter, water flows across the first cascade to remove largest debris particles.  Pre-filtered water then flows over the secondary sieve filter (mesh size 0,65 mm) where the mesh structure diverts any remaining debris.\u003c\/p\u003e\n\u003cp\u003eThe clean filtered water is then delivered into the tank via a calmed inlet.  This allows the water to enter the tank with minimal turbulence and without disturbing any sediment at the bottom of the tank. Rainwater entering the tank via a calmed inlet also supplies oxygen to the water, thereby preventing anaerobic decomposition. Finally, the overflow siphon, which incorporates a skimming inlet, skims the upper surface water and removes any further debris, oils or other floating contaminants thereby increasing the quality of the stored water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for roof sizes up to a maximum of 450 sq metres (per kit)\u003c\/li\u003e\n\u003cli\u003eTwo step cleaning system independent of flow rate ensuring high filtering efficiency\u003c\/li\u003e\n\u003cli\u003eFilter cartridge location assists continuous removal of dirt\u003c\/li\u003e\n\u003cli\u003eFrost resistant\u003c\/li\u003e\n\u003cli\u003eSelf-Cleaning and low maintenance\u003c\/li\u003e\n\u003cli\u003eFilter insert easily removable for cleaning\u003c\/li\u003e\n\u003cli\u003eSuitable for 110 mm (4”) downpipes\u003c\/li\u003e\n\u003cli\u003eFilter unit weight 6.2 kg\u003c\/li\u003e\n\u003cli\u003eSiphon overflow with skimming inlet\u003c\/li\u003e\n\u003cli\u003eSiphon overflow pipe to fit a 130 mm hole in storage tank wall\u003c\/li\u003e\n\u003cli\u003eCalmed inlet to prevent incoming water disturbing any sediment in tank\u003c\/li\u003e\n\u003cli\u003eCalmed inlet also ensures fresh water is supplied to lower area of the tank resulting in complete and regular replenishment of stored water\u003c\/li\u003e\n\u003cli\u003eWall bracket not included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57108659798389,"sku":null,"price":395.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Screenshot2026-04-28112926.png?v=1777372179"},{"product_id":"rainwater-harvesting-kit-c-800m2-filter-calmed-inlet-and-siphon-overflow-254030","title":"Enduramaxx Rainwater Harvesting Tank Kit C – 800m2 filter, calmed inlet and siphon overflow","description":"\u003cp\u003eFilter Kit C has been designed for roof sizes up to a maximum of 800 sq metres and comprises a two stage rainwater filter unit, siphon overflow and calmed inlet.\u003c\/p\u003e\n\u003cp\u003eOn entering the filter, water flows across the first cascade to remove largest debris particles.  Pre-filtered water then flows over the secondary sieve filter (mesh size 0,65 mm) where the mesh structure diverts any remaining debris.\u003c\/p\u003e\n\u003cp\u003eThe clean filtered water is then delivered into the tank via a calmed inlet.  This allows the water to enter the tank with minimal turbulence and without disturbing any sediment at the bottom of the tank. Rainwater entering the tank via a calmed inlet also supplies oxygen to the water, thereby preventing anaerobic decomposition. Finally, the overflow siphon, which incorporates a skimming inlet, skims the upper surface water and removes any further debris, oils or other floating contaminants thereby increasing the quality of the stored water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for roof sizes up to a maximum of 800 sq metres (per kit)\u003c\/li\u003e\n\u003cli\u003eFor installation in a pilot shaft or against the wall in frost-protected areas\u003c\/li\u003e\n\u003cli\u003eAvailable pre-installed in pilot shaft\u003c\/li\u003e\n\u003cli\u003eTwo step cleaning system independent of flow rate ensuring high filtering efficiency\u003c\/li\u003e\n\u003cli\u003eFilter cartridge location assists continuous removal of dirt\u003c\/li\u003e\n\u003cli\u003eSuitable for 110mm (4”) and 160mm (6”) down pipes\u003c\/li\u003e\n\u003cli\u003eFilter unit weight 16 kg\u003c\/li\u003e\n\u003cli\u003eSiphon overflow with skimming inlet\u003c\/li\u003e\n\u003cli\u003eSiphon overflow pipe to fit a 130 mm hole in storage tank wall\u003c\/li\u003e\n\u003cli\u003eCalmed inlet to prevent incoming water disturbing any sediment in tank\u003c\/li\u003e\n\u003cli\u003eCalmed inlet also ensures fresh water is supplied to lower area of the tank resulting in complete and regular replenishment of stored water\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57108679393653,"sku":null,"price":799.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Screenshot2026-04-28114517.png?v=1777373131"},{"product_id":"150-litre-underground-vtp-15","title":"Enduramaxx 150 Litre Underground Tank","description":"\u003cp\u003eEnduramaxx 150 Litre Underground Tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high-density polyethylene (HDPE).\u003c\/p\u003e\n\u003ch3\u003e150 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNB: AVAILABLE August 2025\u003c\/li\u003e\n\u003cli\u003eDimensions (mm) 520 H x 660 Dia\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePopular uses for this 150 Litre Underground Tank:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLandscape watering for parks and recreational purposes\u003c\/li\u003e\n\u003cli\u003eFire sprinkler water storage\u003c\/li\u003e\n\u003cli\u003eHorticultural and Market Garden applications\u003c\/li\u003e\n\u003cli\u003eCost effective watering systems for groundskeepers and sporting stadia\u003c\/li\u003e\n\u003cli\u003eIrrigation and\/or wash-down facilities\u003c\/li\u003e\n\u003cli\u003eBackwash water tanks for swimming pools\u003c\/li\u003e\n\u003cli\u003eRainwater harvesting\u003c\/li\u003e\n\u003cli\u003eFor rainwater applications please see rainwater filters, calmed inlets and overflows.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Enduramaxx","offers":[{"title":"Manhole cover 450mm","offer_id":57191786774901,"sku":null,"price":140.0,"currency_code":"GBP","in_stock":true},{"title":"No Lid","offer_id":57191786807669,"sku":null,"price":100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/150_Litre_Underground.png?v=1779870682"},{"product_id":"280-litre-underground-tank-vtp-28","title":"Enduramaxx  280 Litre Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx 280 Litre Underground Tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high density polyethylene (HDPE).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e280 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 1020 H x 660 Dia\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eENQUIRIES@WATERWISEPUMPS.CO.UK\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57191664157045,"sku":"TANUNDEEND001","price":175.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Enduramaxx_280_Litre_Underground_Tank.png?v=1779978383"},{"product_id":"450-litre-underground-tank-vtp-45","title":"Enduramaxx 450 Litre Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx 450 Litre Underground Tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high density polyethylene (HDPE).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e450 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNB: AVAILABLE August 2025\u003c\/li\u003e\n\u003cli\u003eDimensions (mm) 1520H x 660 Dia\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eENQUIRIES@WATERWISEPUMPS.CO.UK\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57191799423349,"sku":null,"price":235.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Screenshot2026-05-11092806.png?v=1778488098"},{"product_id":"550-litre-underground-tank-vtp-50","title":"Enduramaxx  550 Litre Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx 550 Litre Underground Tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high density polyethylene (HDPE).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e550 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 2020 H x 660 Dia\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENQUIRIES@WATERWISEPUMPS.CO.UK\u003c\/strong\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57191919485301,"sku":"TANUNDEEND002","price":295.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Enduramaxx_550_Litre_Underground_Tank.png?v=1779978902"},{"product_id":"800-litre-flat-base-underground-tank-vtp-80","title":"Enduramaxx  800 Litre Flat Base Underground Tank","description":"\u003cp\u003e\u003cspan\u003e800 Litre underground tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high-density polyethylene (HDPE) with 600 x 600 square galvanised lid or 450mm plastic lid.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e800 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 1200 H x 1100 dia\u003c\/li\u003e\n\u003cli\u003eComes complete with a 450 mm dia plastic lid or 600 mm x 600 mm square galvanised lid\u003c\/li\u003e\n\u003cli\u003eFlat sections of 110mm and 160mm dia for pipework installation\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eENQUIRIES@WATERWISEPUMPS.CO.UK\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57191927054709,"sku":null,"price":320.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Screenshot2026-05-11122550.png?v=1778498765"},{"product_id":"1-100-litre-flat-base-underground-tank-vtp-110","title":"Enduramaxx  1,100 Litre Flat Base Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx 1,100 Litre Underground Tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high density polyethylene (HDPE) with 600 x 600 square galvanised lid or 450mm plastic lid.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e1,100 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 1400 H x 1100 dia\u003c\/li\u003e\n\u003cli\u003eComes complete with 450 mm dia plastic lid or 600 mm x 600 mm square galvanised lid\u003c\/li\u003e\n\u003cli\u003ePipework Options – 110mm and 160mm\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003cli\u003eCan be used above ground also\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eENQUIRIES@WATERWISEPUMPS.CO.UK\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57191938163061,"sku":"TANUNDEEN004","price":370.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Enduramaxx_1_100_Litre_Flat_Base_Underground_Tank.png?v=1779979660"},{"product_id":"1-400-litre-flat-base-underground-tank-vtp-140","title":"Enduramaxx  1,400 Litre Flat Base Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx’s 1400 litre underground tank is designed for use in industrial, agricultural, commercial and domestic schemes. Manufactured with high-density polyethene in a robust one-piece stress-free moulding with smooth hygienic internal and external surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e1,400 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 1734 H x 1119 Dia\u003c\/li\u003e\n\u003cli\u003eWRAS approved polymer\u003c\/li\u003e\n\u003cli\u003eComes complete with 450mm Ø plastic lid\u003c\/li\u003e\n\u003cli\u003ePipework Options – 32mm and 50mm\u003c\/li\u003e\n\u003cli\u003eTank available in either natural\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57159960035701,"sku":null,"price":532.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Screenshot2026-05-11160235.png?v=1778511778"},{"product_id":"1-500-litre-underground-tank-vtp-150","title":"Enduramaxx  1,500 Litre Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx 1,500 Litre Underground Tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high density polyethylene (HDPE).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003e1,500 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 1400 L x 1580 W x 1560 H\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePopular uses for this 1,500 Litre Underground Tank:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLandscape watering for parks and recreational purposes\u003c\/li\u003e\n\u003cli\u003eFire sprinkler water storage\u003c\/li\u003e\n\u003cli\u003eHorticultural and Market Garden applications\u003c\/li\u003e\n\u003cli\u003eCost effective watering systems for groundskeepers and sporting stadia\u003c\/li\u003e\n\u003cli\u003eIrrigation and\/or wash-down facilities\u003c\/li\u003e\n\u003cli\u003eBackwash water tanks for swimming pools\u003c\/li\u003e\n\u003cli\u003eRainwater harvesting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan lang=\"EN-US\"\u003ePlease note delivery cost to Mainland UK is calculated at checkout. POA for Scottish postcodes.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eenquiries@waterwisepumps.co.uk\u003c\/span\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57160000274805,"sku":"TANUNDEEN005","price":546.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Enduramaxx_1_500_Litre_Underground_Tank.png?v=1779980397"},{"product_id":"1-700-litre-flat-base-underground-tank-vtp-170","title":"Enduramaxx  1,700 Litre Flat Base Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx’s 1,700 litre underground tank is designed for use in the industrial, agricultural, commercial and domestic schemes. 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POA for Scottish postcodes.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eenquiries@waterwisepumps.co.uk\u003c\/span\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57160020525429,"sku":"TANUNDEEND006","price":629.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Enduramaxx_1_700_Litre_Flat_Base_Underground_Tank.png?v=1779981299"},{"product_id":"2-500-litre-underground-tank-vtp-250","title":"Enduramaxx  2,500 Litre Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx 2,500 Litre Underground Tank suitable for rainwater and septic tank installations. Manufactured in robust one-piece stress-free mouldings with smooth hygienic internal and external surfaces. Manufactured in high-density polyethene (HDPE).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e2,500 Litre Underground Tank Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 1900 L x 1580 W x 1960 H\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan lang=\"EN-US\"\u003ePlease note delivery cost to Mainland UK is calculated at checkout. POA for Scottish postcodes.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eenquiries@waterwisepumps.co.uk\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57160032026997,"sku":"TANUNDEEND008","price":966.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Enduramaxx_2_500_Litre_Underground_Tank.png?v=1779983018"},{"product_id":"3-500-litre-underground-tank-vtp-350","title":"Enduramaxx  3,500 Litre Underground Tank","description":"\u003cp\u003e\u003cspan\u003eEnduramaxx’s 3,500Litre Underground Tank moulded underground rainwater storage tank is designed for rainwater harvesting and surface water collection for use in industrial, agricultural, commercial and domestic schemes. 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POA for Scottish postcodes.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003ePLEASE CONTACT US FOR AN ACCURATE LEAD TIME\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eenquiries@waterwisepumps.co.uk\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57160037007733,"sku":"TANUNDEEND009","price":1075.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Enduramaxx_3_500_Litre_Underground_Tank.png?v=1779983412"},{"product_id":"10-000-litre-underground-tank-vtp-1000","title":"Enduramaxx 10,000 Litre Underground Tank","description":"\u003cp\u003e\u003cspan\u003e10,000 underground water tank suitable for rainwater and septic tank installations. 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Manufactured in high-density polyethene (HDPE).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e10,000 Litre Underground Tank Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (mm) 3980 x 2180 x 2540\u003c\/li\u003e\n\u003cli\u003eComes complete with lid\u003c\/li\u003e\n\u003cli\u003eManufactured in the UK\u003c\/li\u003e\n\u003cli\u003eGuaranteed for 10 years\u003c\/li\u003e\n\u003cli\u003eOptional filter kits available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlease contact WaterWise Pumps team for pricing and shipping information - \u003cstrong\u003eenquiries@waterwisepumps.co.uk\u003c\/strong\u003e\u003c\/p\u003e","brand":"Enduramaxx","offers":[{"title":"Default Title","offer_id":57160049262965,"sku":null,"price":2521.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8553\/5774\/files\/Screenshot2026-05-11164429.png?v=1778514281"},{"product_id":"rainwater-harvesting-garden-harvest-water-tanks","title":"Harlequin Rainwater Harvesting - Garden Harvest Water Tanks","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003e'Garden Harvest' \u003c\/em\u003e\u003c\/strong\u003erainwater harvesting systems are ideal for efficient collection, storage and distribution of rainwater to be used during periods of water scarcity\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduce Water Costs\u003c\/strong\u003e – Collecting and reusing rainwater keeps your water costs down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation \u003c\/strong\u003e– Our shallow tanks only require a shallow excavation with no concrete backfill, which further reduces your installation costs. Pea Shingles backfill can also be used.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Corrosive\u003c\/strong\u003e – Manufactured from Medium Density Polyethylene (MDPE), Harlequin tanks will not corrode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Turret\u003c\/strong\u003e – Turrets for some of the models have the ability to be extended or reduced to fit each installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Tank Body\u003c\/strong\u003e – A seamless one piece moulded tank guarantees strength. 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