[Mike55]

What's the difference between a 300gpd RO system like the one pf sell, and a 40/40 static ro system? 

Can anyone explain how a 40/40 works for me and the running costs between the two?  Cheers

[Nick Wareham]

basically its about volume.

A 300gpd unit will producr about 1,135 litres per day of pure water under optimum conditions. (about 8 litres every 10 minutes)

A 4040 unit will produce about 9,000 litres per day, or about 62 litres every 10 minutes.

Go for the 4040 unit every time.

[Mike55]

Thanks Nick.  Is it still the same way to rig up the equipment, just that one produces more than the other?

[Gav Camm lammy 283]

get a merlin much cheaper mike 

[SherwoodCleaningSe]

Rig them up in the same way but you need a lot more room for the 4040. The figures are optimum in the real world a 300gpd to man might only give you 400 litres in 24 hours.

Simon.

[mikecam]

What's the difference between a 300gpd RO system like the one pf sell, and a 40/40 static ro system? 

Can anyone explain how a 40/40 works for me and the running costs between the two?  Cheers

As Nick says......its about volume. The 40/40 RO membrane will out perform the smaller ones for speed of water production, but beware .....the 40/40 membranes require excellent water pressure, even the 'low pressure' ones.
 The smaller 300gpd and Merlin systems will mostly operate fine from tap pressure, indeed they are designed to do so.

[Mike55]

What's the difference between a 300gpd RO system like the one pf sell, and a 40/40 static ro system? 

Can anyone explain how a 40/40 works for me and the running costs between the two?  Cheers

As Nick says......its about volume. The 40/40 RO membrane will out perform the smaller ones for speed of water production, but beware .....the 40/40 membranes require excellent water pressure, even the 'low pressure' ones.
 The smaller 300gpd and Merlin systems will mostly operate fine from tap pressure, indeed they are designed to do so.

So a booster pump would do the trick?  I thought the 300gpd systems worked better with a booster pump too?

[mikecam]

What's the difference between a 300gpd RO system like the one pf sell, and a 40/40 static ro system? 

Can anyone explain how a 40/40 works for me and the running costs between the two?  Cheers

As Nick says......its about volume. The 40/40 RO membrane will out perform the smaller ones for speed of water production, but beware .....the 40/40 membranes require excellent water pressure, even the 'low pressure' ones.
 The smaller 300gpd and Merlin systems will mostly operate fine from tap pressure, indeed they are designed to do so.

So a booster pump would do the trick?  I thought the 300gpd systems worked better with a booster pump too?

Everything works better with a booster pump if you have low pressure. You need to find out your water pressure first, then decide how much water you want to make and then consider your options.