Would a smaller vessel do?

For a single sediment stage on a small house, often: the 45 litre size backwashes with 30 litres a minute. Ask us; we stock the 75 litre because it is the size most households actually need for a softener or a borehole filter.

Does it come with media?

No. The media pages say how many bags fill it, and the courier quotes the lot together at checkout.

Why is the courier not free?

A 1.4 metre parcel is billed on volume, not the 9 kg it weighs. We show you the real rate at checkout rather than hide it in the price.

How long does delivery take?

Paid orders leave us within 24 hours. Gauteng usually sees the parcel in 2 to 3 working days, the rest of the country in 3 to 5. Tracking from The Courier Guy arrives by email the moment it leaves.

75 litre FRP pressure vessel with its riser pipe, top distributor and bottom strainer

Water Experts · Vessels, Runxin Valves

75 Litre FRP Vessel with Riser and Distributors

Name: 75 Litre FRP Vessel with Riser and Distributors
Brand: Water Experts
SKU: FRP-75L-KIT
Price: 2995.00 ZAR
Availability: InStock

The tank a filter or softener is built in. With the parts everyone else sells separately.

A 12 by 52 inch fibreglass pressure vessel, 307 mm across and 1 335 mm tall: 85 litres in total, 75 litres of media once the freeboard is left for backwashing. Rated 10 bar, 2.5 inch top opening. In the box, not sold separately: the 27 mm riser pipe cut for the vessel, the top distributor and the bottom strainer, so it takes a Runxin valve straight out of the box.

Not sure what the water needs? Book the lab test

Delivery estimate

85 litre shell, 75 litre working fill

10 bar rated, polyethylene liner

Riser, top distributor and bottom strainer included

Takes any 2.5 inch Runxin valve

The size for a household softener or borehole filter

In detail

75 litres or 85 litres

Both, and shops that quote one number without saying which are why plant gets sized wrong. The shell holds 85 litres. A media bed needs 30 to 50% of its depth empty above it so the grains can lift and separate during a backwash; fill it to the neck and the backwash pushes media down the drain. 75 litres of media is the working fill for AFM, carbon or resin, with a little less for calcite.

What fills it

Media	Fill	Bags
AFM (sediment, turbidity)	25 kg grade 2 under 50 kg grade 1	1 + 2
Activated carbon (chlorine, taste)	About 37 kg	1.5
Calcite (low pH)	About 75 kg	3
Softener resin	75 litres	3

Each media page has the same table for the 45 and 100 litre sizes.

What goes on top

Any 2.5 inch valve: the F56A1 manual and F67C1 automatic filter valves, or the F63C1 softener valve. The riser is cut to length for this vessel and the top distributor clips into the valve base; the bottom strainer glues to the riser. Nothing to measure, nothing to buy from a second shop.

Backwash flow

The drain has to take it: about 50 litres a minute for AFM (3 m³/h), 30 for carbon and calcite, under 15 for resin. If the pump cannot deliver that to the drain, the bed does not lift and the media clogs. A booster pump ahead of the plant, or a smaller vessel, are the two fixes.