[Michael Peterson]

can a transfer pump be used as a booster pump?

[Don Kee]

No

Transfer pump creates flow from static water
Booster pump takes the flow and boosts the pressure

[Scrimble]

yes of course you can, i use a clark pump as a transfer pump but many on here use the same pump as a booster pump, i wouldnt use the same pump to do both as you will risk pumping tap water into your van tank

[robert mitchell]

totally depends on the pump specs , for a booster you need a certain pressure usually 80-100 psi , most pumps designed to move a large amount of water quickly will have a much lower pressure.

[Scrimble]

I use this as a transfer pump, with 1" hose it fills 600l in less than 5 minutes,

i used to use it as a booster pump for a 4040 ro and it took it to around 90psi, no need now as my tap pressure is 85psi

https://www.machinemart.co.uk/shop/product/details/cbm240-1in-multi-stage-water-pump?da=1&TC=RV-051011130

[robert mitchell]

That pump is generally sold as a booster pump so yes that would do both jobs as it has a flow rate of upto 100lpm .

it depends on the type of transfer pump he uses as to wether it will also work as a booster.

[Spruce]

No

Transfer pump creates flow from static water
Booster pump takes the flow and boosts the pressure

 

Don, like so many things, what their original design was for and what they are actually used for are two different things.

I would have replied as you have a few years ago and only used the specific booster pump, sold by Machinemart and recommended by GAPS Water as the ideal.

https://www.machinemart.co.uk/shop/product/details/cbm240e-1in-multi-stage-230v-booster-pum

I have seen that others have successfully even used cheaper £40 pumps from Lidl on promotion.

[Walter Mitty]

The thread has been quite enlightening.  I would have said "Probably no" to the OP due to the much larger quantities of water that are shifted with a transfer pump.  It's easy to assume that pressure build up if using a transfer pump might be too much for the RO or pre-filter fittings.
I'm guessing that this is the classic case of higher flow rate not necessarily meaning higher pressure?

[Spruce]

The thread has been quite enlightening.  I would have said "Probably no" to the OP due to the much larger quantities of water that are shifted with a transfer pump.  It's easy to assume that pressure build up if using a transfer pump might be too much for the RO or pre-filter fittings.
I'm guessing that this is the classic case of higher flow rate not necessarily meaning higher pressure?

TBH our transfer pump doesn't develop a high water pressure. I can't see it boosting our 4040.

[Don Kee]

I stand corrected