F-Line 7500 Litre Tank

F-Line Flat Rainwater Tank 7500 litre shallow dig underground tank with accessory options.

The F-line flat tank can be installed into much higher water tables than a standard round tank. If you don’t know what your water table will be like in the winter, you’re safer to install a flat tank.

The F-Line tanks are flat and the installation depth is 60% less than other rainwater tanks. The excavation can be up to 70% less, meaning little earth excavation, easy handling and less cost for you!

The small excavation pit is easily filled in and your garden will look just like it did before.

Using your digger to lower the tank into the hole is incredibly easy because of the square / rectangular hole. The 1500 litre shallow dig tank has even been known on several occasions to be located in the hole by two people with no lifting equipment.

If you have also included the factory fitted filter, calmed inlet and overflow siphon you simply have to connect your inbound and outbound pipes to the 4″ locator pipes protruding from the tank and away you go!

There are two types of shaft with the F-Line Shallow Dig Tank.

The 235mm shaft is usually selected if you need to go as shallow as possible in the ground. Bear in mind through that you need to ensure that the drainage pipe levels will work with such a shallow invert / outlet on the tank.

The 635mm shaft is our standard shaft supplied with the tank. The shaft can be cut down by 400mm which gives you the flexibility on site of ensuring you have the correct levels.

Both the 235mm and 635mm shaft come with a Pedestrian Lid. This lid is used in areas where there is no vehicle traffic i.e in the garden area. This lid is suitable for ride on lawnmowers but not tractors!

If you need to locate the tank in your driveway then you will need to choose the driveable shaft and steel lid. Due to the earth coverage required over the tank and the additional loading of a vehicle you cannot cut down this shaft.

You must choose a shaft and lid for the tank from the options above.

The F-Line Tank comes with the option of an In Tank Filtration pack. The set has all the components needed to filter the rainwater as it enters your tank and drain any surplus to your overflow.

The fine filter filters dirt particles, before they reach the tank. The filter cartridge can simply be taken out for maintenance and can be easily cleaned.

All the parts are factory fitted ready for connection. To buy this option see the drop down menus above or call 01733 405111.

*Overall height allows for 100mm compacted aggregate

**Using a VS60 (635mm Shaft)

The overall height difference above is because up to 400mm can be cut off the 635mm shaft on site so as to achieve your exact invert level.