[KS Cleaning]

Installed a new Wydale 500 litre flat tank and the water movement is terrible compared to my previous Enduramaxx 500 litre upright tank.
Has anyone used perforated drainage pipe or baffle balls in their tank to reduce water sloshing and how much of a difference does it make?

[windowswashed]

Fitting drainage tubes with holes in tightly together would slow down the swooshing of water in the tank a lot as each tube would minimise the mass amount of movement into many individual compartments .

[Stoots]

Ive made that mistake before buy a flat tank and its so much harder getting the last of the water out, you can  have like 50l in the bottom you cant get to unless you park on a steep hill.

upright tank is the answer

[colin bird]

Ive made that mistake before buy a flat tank and its so much harder getting the last of the water out, you can  have like 50l in the bottom you cant get to unless you park on a steep hill.

upright tank is the answer

Or bump up the kerb with tank exit pipe on the road side allowing you to get all the water out,bit of a pain but that what I did in my first van as I had a 400 l flat tank

[KS Cleaning]

Ive made that mistake before buy a flat tank and its so much harder getting the last of the water out, you can  have like 50l in the bottom you cant get to unless you park on a steep hill.

upright tank is the answer

Bought a flat tank because I thought it would be a better shape for ratchet strapping it in, I say flat tank, the one I went with is more like a cube, so water level should still be ok towards end of the day. It’s the water sloshing that is a pain.

[zesty]

Yep, perforated drainage pipe, took all the sloshing away in my 750l flat tank. Absolutely no issues now.

[Spruce]

Yep, perforated drainage pipe, took all the sloshing away in my 750l flat tank. Absolutely no issues now.

In the early days, Ionics used perforated drainage pipes in their tanks that didn't have baffles.

I'm not sure how easy it would be to fit them tightly into a flat tank, though.