Underfloor Fresh Water Tank: What pump to go for?

Post by **Swampy** » 05 Feb 2008, 23:53

I want to install an underfloor Fresh Water tank in my Van, replacing the Waste Water tank that currently sits there.

I have a tap which currently switches on my submersible pump for my little fresh water tank.

If I fit an inline pump, can I still use that switch, or is there more involved with an inline pump?

I don't think I could get away with using the submersible pump, or could I?

Any advice appreciated here.

Post by **shepster** » 06 Feb 2008, 09:02

You can still use a submersible but just remember you will need to take the tank off if you need to get at it.

I fitted an inline one when i put my tank on, the type i used needs to be permanantly 'primed' so it needs to be sited below the water level in the tank in order to work.

I shoul imagine the tap/switch will still work as all it's doing is providing power to the pump.

Post by **ringo** » 06 Feb 2008, 11:06

When mine broke, i replaced it with one of these....

http://cgi.ebay.co.uk/Flopump-12v-water ... dZViewItem

The pipe is the wrong size but that was easily fixed....

Works well under the rock and roll bed - self priming and all that. Put a none return valve inline too and it will work a treat.

Ringo

Post by **Swampy** » 07 Feb 2008, 22:14

That looks the job. Like the word "quiet" used with that pump.

How did you get around the pipe size issue? Adapters of some sort? (pardon the blatant ignorance, here)

I assume that if I stick a non-return valve in, then I won't need to worry about keeping the pump below the water level (as long as my pipe starts at the lowest point of my tank, of course).

Post by **ringo** » 07 Feb 2008, 22:19

I got round it by fitting some pipe over the pump inlets (correct size for pump) and then fitting my pipe over that - a jubilee clip over the lot and a good seal was made.

The pump is self priming - so it doesnt have to be below the water tank. The non return valve ensures you dont have to prime it every time (it takes a while sometimes) you use it.

Ringo

Post by **Swampy** » 07 Feb 2008, 22:37

I see! Perfect.

Now all I've got to do is gather the bits & plumb it in.

Thanks for the info. I've got a better idea of how to tackle this, now.

Post by **DiscoDave** » 10 Feb 2008, 16:12

hey ringo, is that pump of yours switched by the tap of does it work on a pressure system?

ours is simmilar but comes on when there is loss of pressure upward of the pump (ie when you turn the tap) it's great!

Post by **ringo** » 11 Feb 2008, 08:25

Yo Dave,

Mine is switched on when i press the footswitch - so not like your pressure one..

Ringo