[Seamus ODwyer]

Hi can anyone tell me please, as a safety conscious window cleaner lol  is this machine safe ive not really used a booster pump just a Pump that dont run when dry? Im worried though about the pressure vessel , i want to know if its possible it could explode? just in case please?
Sorry about the messy pic, i used washing machine hoses for the piping you cant them here

[windowswashed]

I may be wrong but them pumps chuck out 50-100lpm. Used one for transfering water but wouldn't let it run dry

[Spruce]

Hi can anyone tell me please, as a safety conscious window cleaner lol  is this machine safe ive not really used a booster pump just a Pump that dont run when dry? Im worried though about the pressure vessel , i want to know if its possible it could explode? just in case please?

Sorry about the messy pic, i used washing machine hoses for the piping you cant them here

Some have used these as booster pumps although I don't believe they are best suited to this application. I have one which I have used for 12 years as a tranfer pump which is what they are designed for. You certainly don't want them to run dry and they don't self prime very well either. But that shouldn't be an issue if you are using it as a booster pump.

The water going through the resin in the di vessel is usually low pressure if the water goes into a holding tank.

Many fit a di vessel between their pump and hose reel and haven't experienced any damage caused by pressure generated by the pump.

[Spruce]

Hi thanks for your answers, really do make me feel safer thanks!  however im not concerned about the pump exploding, its not the water pump that worries  me, that cost effective bad boy which is only 80psi im concerned about the big metal 4040 blowing up whilst cleaning a school,  it looks like a bomb, sounds like a steam engine  is it completely safe ? Im just concerned about the big metal casing i wont be turning the tap off.
 i made this and i get 11ppm ( before DI)using just an 80 psi pump there good flow for up to 47 ft coming out but have also made a heavy weight pump box with large 110 amp deep cycle battery got a couple of 8lt pm pro pumps dialed down with a speed flow adjuster or super heavy flow. The 4040 has an American expensive membrane we need all the best filters here in London
Really looking forward to getting a lot of water on demand on site with this on very big jobs
i know have a vast collection of pumps as well, and use a sump pump with a petrol type handle for transfers and keep at least 3 diaphragm pumps in me car just in case With the 4040 im not sure how big a pump i need to make my filter last the longest, i know this one performs fairly good at 40-75 psi, this Clarke pumps out at 80 psi so would buying/fitting a 300 psi or bigger? pump be safe and would the membrane last? im all for more water if possible? Whats the scale it can handle?
Any comments info help always appreciated thanks to all!! i think these and a  water pump box  are fab! I also bought a 1000w/ 2000w  Inverter(modified sine) for my Land Rover Guys however it works my 800w pump as planned it failed to work my Gusto Coffee Machine by Delongi the lil green light wnt come on GUTTED now need to find another coffee machine that will work ?

Our membranes will work best between 50 and 100 psi depending on which membrane it is. One of the sellers of Chinese membranes boasts an optimum working pressure of 140psi on his site.

Doug at Daqua is probably the person to ask.

On a yacht their water filtration (desalination) membranes operate at a much higher pressure, somewhere around 500psi but they use smaller 2" housings.

The issue with your invertor is probably because its modified sine wave so is a 'dirty' current. If you got a pure sine wave invertor it will work if it works on ordinary household current. Pure sine wave invertors are much more expensive. What current does your coffee machine draw? One of the manuals says the machine I looked at was 1500w so this could also be the reason.

The other issue using an invertor is that ordinary leisure batteries won't last using them as they aren't designed for high discharge. This is a whole new 'ball game.'

[Ooooooog]

Rather than an inverter and battery, why not a little suitcase genny? Those little Hondas are amazing, very quiet too.

[mac74]

This one is good, it gives me a good pure/waste, mix ratio. i.e My mains tap water pressure into booster (below) is @ 35 psi  - then 80psi from boosted to 4040 RO, via two 20" pre filters, is the  -  Draper 100l/Min (Max) 1000w 230v Multistage Surface Mounted Pump 56227 - £190 toolstation - Im not 100% sure on this, and it may not matter to your setup, but i remember the pumps inside pressure washers need about 3x the kick over in Kw's to start them off, before they drop down to there normal watt rating, (so a 1.7kw /1700w pressure washer would need a genie @ about 5.5Kw) BUT im not sure if this applies to the type of booster pumps above, that we are talking about? but its worth checking this out before you buy a generator. good luck m

[Spruce]

This one is good, it gives me a good pure/waste, mix ratio. i.e My mains tap water pressure into booster (below) is @ 35 psi  - then 80psi from boosted to 4040 RO, via two 20" pre filters, is the  -  Draper 100l/Min (Max) 1000w 230v Multistage Surface Mounted Pump 56227 - £190 toolstation - Im not 100% sure on this, and it may not matter to your setup, but i remember the pumps inside pressure washers need about 3x the kick over in Kw's to start them off, before they drop down to there normal watt rating, (so a 1.7kw /1700w pressure washer would need a genie @ about 5.5Kw) BUT im not sure if this applies to the type of booster pumps above, that we are talking about? but its worth checking this out before you buy a generator. good luck m

Yes it does.

I have a 1500 watt gutter vac and the highest starting spike draw measured was 5.2kw. They generally say that motors require a startup reserve of 3 times the rated wattage.

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