F-Line Shallow Dig Tanks Making Rainwater Harvesting An Even Better Idea Whether there is too much or too little rain, why not invest in a large capacity F Line tank with one of our rainwater harvesting systems. Use rainwater off the roof for toilets, washing machines and the garden and you could save 50% on water bills. Minimum installation depth Less earth to remove One-piece easy to manoeuvre shape Suitable for high water table locations Pre-fitted accessories Call one of our sales team free on

0800 074 7234 Technical Details Shallow rectangular shape for ease of installation As the height of these tanks range from as little as 1015mm to 1415mm, the hole needed is much less than for standard circular or oval tanks. This means the tank is easier to install and so is access for maintenance afterwards. What does shallow dig mean? The tank is particularly shallow, i.e its overall height is small. This means the hole is not as deep as traditional tanks and can be dug without the need for shoring up the sides, in fact the hole for an F-Line can be dug by hand if there is no access for a JCB....