[AuRavelling79]

For reasons that are irrelevant I have two tanks - one is a 250L upright and the other is a 125L flat.

The 250L is up against the metal bulkhead and the 125L sits against it, both across the van.

When the 250 runs out I unclip the hoselock connector from it and clip it onto the one coming from the 125L, but then find that the flow at the brush seems much less (tho' still just usuable).

I've got a varistream and 100psi shurflo with about 85m of microbore to an autobrush.

Any ideas? (oh - and turning up the varistream from about 1 o clock to full makes no difference - but sometimes it does eventually pick up for no apparent reason)

[john tomkins]

Obviously due to the changing over and as you say air entering the system,
aint there any war you can "y" connect the tanks and just have  on/off valves in line from tanks then you can just turn them on/off as necessary without the possibility of air entering.

[Roy Harding]

Malc

I would connect both tanks using a T piece, you could if you need to fit a flow control tap to shut one tank or the other. see the link.

http://www.garden4less.co.uk/products.asp?cat=17

Roy

[AuRavelling79]

Thanks guys - will do so this weekend!