Quote from: Splash and dash on December 10, 2025, 09:54:17 pm

Quote from: AuRavelling79 on December 10, 2025, 09:49:47 pm

I don't get the drama about a flat tank being a problem. I just park the van 'the right way' so the outlet is at the lowest point.

You can’t necessarily do that though can you especially in a one way street etc if you live in a relatively flat area like Lincolnshire you would prob get away with it but you certainly can’t ware we live , I don’t know a single cleaner that has a flat tank as they won’t work here .

My area has some flat areas and some pretty hilly bits. My outlet is on the nearside front so generally works with the camber of the road.

But what happens if you are facing up a reasonably steep  hill ? I found it was drawing air as the water went to the back of the tank once you get to half a tank full  and the outlet was above the water level

Quote from: AuRavelling79 on December 10, 2025, 09:49:47 pm

I don't get the drama about a flat tank being a problem. I just park the van 'the right way' so the outlet is at the lowest point.

You can’t necessarily do that though can you especially in a one way street etc if you live in a relatively flat area like Lincolnshire you would prob get away with it but you certainly can’t ware we live , I don’t know a single cleaner that has a flat tank as they won’t work here .

My area has some flat areas and some pretty hilly bits. My outlet is on the nearside front so generally works with the camber of the road.

I don't get the drama about a flat tank being a problem. I just park the van 'the right way' so the outlet is at the lowest point.

You can’t necessarily do that though can you especially in a one way street etc if you live in a relatively flat area like Lincolnshire you would prob get away with it but you certainly can’t ware we live , I don’t know a single cleaner that has a flat tank as they won’t work here .

Quote from: Splash and dash on December 10, 2025, 07:08:57 pm

Quote from: ֍Winp®oClean֍ on December 10, 2025, 06:53:14 pm

You just need to fit a non-return valve on the tank outlet. Cost about a fiver and pretty much eliminates air ingress! I've been using one for years. 👍

That doesn’t work when the vans parked up hill and the water level is below the water outlet , I found this to be the main issues with a flat tank.

Errrrrr.... Obviously! But it does prevent air ingress from the water movement when the level drops to a low point.

But quite often you end up with half a tank of water you can’t use if parked on a hill, that was the main issue I had then you got air in the system and it was a pita when you did have water above the outlet again ,.

Quote from: ֍Winp®oClean֍ on December 10, 2025, 06:53:14 pm

You just need to fit a non-return valve on the tank outlet. Cost about a fiver and pretty much eliminates air ingress! I've been using one for years. 👍

That doesn’t work when the vans parked up hill and the water level is below the water outlet , I found this to be the main issues with a flat tank.

Errrrrr.... Obviously! But it does prevent air ingress from the water movement when the level drops to a low point.