Underdeck Water Tanks

Why buy underdeck water tanks?

They are a great solution for limited space and allow you to keep your water storage out of sight. They are a low profile rainwater tank that is designed to fit under a deck or in an empty space under your house.

This type of tank is popular on a small block with minimal yard, or a steep block that has been dug out and has spare space under a level, allowing you to take advantage of unseen, otherwise wasted space, and free the yard you do have.

Rotoplas underdeck water tanks

Our underdeck water tanks are available in three different sizes however they all feature 2000 litres capacity.

Our tanks have been designed to last a long time. They have been engineered and FEA tested to ensure their strength, and being polyethylene, they won’t rust or scratch. They are also suitable for contact with drinking water. This leaves you with a durable, reliable water storage source. We manufacture to order in your preferred colour from a range of over 20 popular colours.

These tanks are manufactured with ribbed strength for evenly distributed pressure.

All Rotoplas underdeck water tanks are supplied with a fitted leaf strainer and a loose overflow. They are also supplied with quality 25mm BSP brass outlets moulded into the tank. You can view the product specification sheets on each individual product page for fitting locations or contact us to discuss your requirements.

Our rainwater tanks are high quality, UV resistant, and are covered by a 10 year manufacturer’s warranty for your peace of mind.

*We make our tanks to order with a normal production time of around 4 weeks.