You can buy a pressure gauge at Home Depot for about $8.00 that will screw
onto a garden hose type faucet. This will tell you if you need a pump. I
think the minimum pressure on my RO unit is 40 psi and the max is 80.

This will tell you if you need a pump.


"Robin Gordon" wrote in message
...
thinking of gettting one of these whats the problems. do they need a pump
on all the time like the old ones used to and are they good enough to
plumb
into the standard water supply

Robin.