Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Stephen burton on July 14, 2015, 09:32:04 pm
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Just bought a brand new booster pump but doesn't have any instructions, I'm guessing it goes before the Ro unit, my only problem is that the plastic pipe coming from the mains is too thick to fit in the pump Inlet and outlet
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Mine is fitted before the prefilters because it is a spare sureflo pump that I've used with a motor controller to reduce the volume output, but I think the one you have is supposed to be fitted after the prefilters but before the RO. From your picture it looks like the right connections for that.
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Take pipe from after pre filter and connect it to inlet booster pump . Pipe from outlet on booster pump goes to inlet on membrane housing
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Cheers for reply, I'm having problems I fitted the pump before the membrane but still not getting anymore pressure any ideas please
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Daft question, have you put the inlet & outlet the right way around?
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Did you check that the pump was working before you plumbed it in?
What was your mains pressure before you fitted the pump?
Has your RO got a pressure gauge and if so did you plumb it in before or after the gauge? If you plumbed it in after, the gauge wont see the increase in pressure.
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I'm sure it's in the right place, it's after pressure gauge so I timed filling a jug up with pump and without the difference was about 20 seconds, my pressure currently is 35-40 and the pump is suppose to produce 70 so nearly double. Very confused what to do next
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Is it possible to fit it before the pressure gauge? You could get some idea then as to it's actual output pressure.
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This is my set up (http://www.cleanitup.co.uk/smf/1437059130_image.jpg)is
Is it wrong
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(http://i5.photobucket.com/albums/y167/milkman2912/ROA.jpg)
Hope you can see the photo. You have the same unit as me. Try removing the bit I've circled in red. If memory serves it is surplus to requirement. I took mine off at the start with no problems. Just run the waste straight down the drain after the restrictor and the other pipe straight into your booster pump and see how that goes.
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I removed the plastic square part u circled in photo, still the same, I thought perhaps I have put the inlet and outlet wrong on pump, I switched them about and my pressure gauge went upto 65 but no water was coming out so I can't do anymore I don't think
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If the pump is plumbed in after the pressure gauge, then the gauge wont see the pressure from the pump. If it does then it is plumbed in backwards and that is why no water is coming out.
Are there no markings on the pump to indicate which way the water should flow through it? Inlet, outlet etc? You can check anyway by disconnecting it from your RO leaving the hoses connected to the pump, and putting one hose in a bucket of water and switching it on. If it blows bubbles that is the outlet and if it sucks up and spits water out the other end, its the inlet.
When you plumb it back in try to do it before the gauge. If you can then you can see what the pressure is with it switched on and off and compare water flow accordingly.
You can leave out the bit you removed that I circled in red as it is only needed if you are filling a pressure vessel for drinking water and are using a faucet. It's a hydraulic cut off valve.
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(http://www.cleanitup.co.uk/smf/1437148114_image.jpg)
This is where my connection is so it should show on pressure gauge, I plumbed it in like you said and left pipe in bucket before Ro and it comes out there fine
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From what I can see in your last photo, the booster pump is in the right place, however, it will only show the mains pressure on the gauge as the gauge is before your booster pump. It's not a problem because it won't stop the pump doing it's job. You just won't be able to read the pump pressure. To do that you would need to configure your pipework slightly differently. You would need to fit an elbow piece to the back of the canister in your picture and run the pipe into your pump. then between the pump and the RO you would need to fit a 'T' connector, and connect the gauge at that point. Unfortunately the thread size in the canister and the RO are different so you can't swap them over. At least they are on mine.
Beyond that I don't know what to suggest. I think the 300gpd advertised is only achievable in absolutely optimal conditions, whatever they are. I've got a permeate pump attached to mine as well and it just about keeps up with me.
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What booster pump have you got and what is the psi output
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I'm using a second hand Sureflo 100psi pump with a spare digital flow controller to reduce the output as it's way to high otherwise. The controller is set to between 2 and 3 on the dial. It is fitted between the mains and the whole unit. I'll post a photo when I get a chance.
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Thanks for your help I have just emailed the company I got it from and they said it is a mismatch and won't support my system
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30 psi and 0.85 lpm (less than a liter per minute). No wonder it won't work.
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Where did u get that info from spruce
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Thanks for your help I have just emailed the company I got it from and they said it is a mismatch and won't support my system
Was that the company you got the booster pump from? Because if it was - and I stand to be corrected - it sounds like a fob off. That RO unit is advertised, if memory serves, as being able to be used with a mains pressure up to 100psi. If your mains supply can't deliver it and your pump can, then there shouldn't be a problem.
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Where did u get that info from spruce
It's printed on the side of your pump.
However, and maybe I'm reading it wrong, but those figures are stating that if you have an inlet pressure of 30psi, your pump will deliver .85ltr/min at 70psi. If you have an inlet pressure of 40psi, it will still only boost it to 70psi. If I've got it wrong I'm sure someone will correct me.
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http://www.osmotics.co.uk
This is the company I got it from
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It's about pressure, not so much volume. My sureflo for instance turned up to max is still not capable of giving me more volume than what comes out of my tap. So if I attach a garden hose to it in actual fact less volume comes out. However, if I try to stop the flow with my finger with the pump turned on, it's nearly impossible. My sump pump that I use to transfer water from my storage tank to my barrels on the other hand, delivers high volume and would soak you to the skin in a second, but if you put your hand over it you can stop the flow easily. It's low pressure.
Your RO requires high pressure but low volume. You won't get .85 litres/min out of the RO. Remember, it produces waste water as well. You'll be lucky to get 25 litesr/hour. So I would have thought that .85 liters/min at 70 psi, maintained at the input of the RO would have been more than enough to increase it's output by a reasonable margin.
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All this is going straight over my head if I'm honest I'm sending the pump back as its making no difference I have had my Ro on today for 5 hours and it's produced 90 litres of water
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Can't say you didn't try. It might be worth investigating a Permeate Pump.
http://www.aquatec.com/permeate-pumps.html
I wouldn't buy one though unless you can get it on a trial or return basis.
Best regards
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Tried too hard I think, thanks for all your help it's much appreciated
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Put this pump - http://www.purefreedom.co.uk/24v-aquatec-reverse-osmosis-booster-pump-power-supply.html - in between your prefilters & membranes
Add another 150gpd membrane to make it a 450gpd R.O
Do that and you'll more than enough water you can deal with...
Might be worth reading a few threads on how R.O's work mate, at least that way you'll have more of an idea on what they need to work...
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Put this pump - http://www.purefreedom.co.uk/24v-aquatec-reverse-osmosis-booster-pump-power-supply.html - in between your prefilters & membranes
Add another 150gpd membrane to make it a 450gpd R.O
Do that and you'll more than enough water you can deal with...
Might be worth reading a few threads on how R.O's work mate, at least that way you'll have more of an idea on what they need to work...
Its a single 300 GPD membrane Don. If he adds another it will turn it into a 600 GPD. I'm not sure if mixing membranes is an issue or not TBH. I just wonder if the restricter will cause an issue.
Another supplier has specs for this r/o. Under ideal conditions (no detail) they produce 28 litres of pure an hour.
They also mention that the restrictor uses 3 litres to produce 1 liter of pure, ie 2 waste to 1 pure.
Sorry, but I would consider a new r/o as I believe that Stephen is always going to be on the back foot with regard to water. I would consider a 4021 but would probably opt for a 4040 and be done with it.
Upgrading a 4021 by adding an extra housing and membrane will make replacing 2 membranes very expensive further down the line.
An HF5 membrane in our 4040 with 50 psi and 13LPM tap water gives us 2 LPM of pure without a booster pump. Waste to pure 1:1 approx.
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Yep, you're right spruce!
Sorry, I didn't really look at the photos of the R.O (although I'm pretty sure the pump would be ok to use..?)
Agree on the 'back foot' statement...
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Yep, you're right spruce!
Sorry, I didn't really look at the photos of the R.O (although I'm pretty sure the pump would be ok to use..?)
Agree on the 'back foot' statement...
Hi Don
A couple of months ago I dug my old 450GPD r/o out and connected it up to the outside tap. I couldn't believe how long it took to produce a liter of pure water.
I stuck with it out of ignorance even when son in law joined us part time. That r/o worked pretty much all week and most of the weekend. I spent Saturday and Sunday filling 2 vans so we could get through the week. Muggins would usually be the one to go without if there wasn't enough water to go round. I was overjoyed when the weather was bad during the week as that gave me a day to catch up water wise.
These small r/o's are ok for filling fish tanks, but aren't any good for window cleaners IMHO.
Upgrading to a 4040 was one of the best things I have done as it has taken so much pressure off me. I no longer have to balance the water books.