Water pressure

[Andrew Ellis]

What's causing water pressure to drop on my RO i got it about a month ago and set it up and the pressure is getting worse [emoji20]

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[Den]

Have you check your water pressure or your prefilters could be getting clogged up.

 

[spruce]

... or simply the supply pressure is reduced, possibly due to excessive demand, burst water pipe, etc. Its important to know what your water pressure is so if it changes, you have grounds to question why with the approporate authorities.

 

[Andrew Ellis]

... or simply the supply pressure is reduced, possibly due to excessive demand, burst water pipe, etc. Its important to know what your water pressure is so if it changes, you have grounds to question why with the approporate authorities.

It was 75 bar for a while when i set it up a month ago but lately it's dropping below 50 bar and it's just trickling out now

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[Iron Giant]

Are you using a standard RO if so read through my post Production Nightmare their is loads of info 

 

[Andrew Ellis]

Are you using a standard RO if so read through my post Production Nightmare their is loads of info 

Where do i find that pal and this is a picture of it thanks for the help

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[Iron Giant]

13th post down. If that's a 100-150gpd ro you will seriously struggle to make enough of water if you have 300 plus jobs and are working all the day wfp

County Durham Lad

You can need at least a 300gpd room for what is your tap tds

County Durham Lad

 

[Andrew Ellis]

13th post down. If that's a 100-150gpd ro you will seriously struggle to make enough of water if you have 300 plus jobs and are working all the day wfp

County Durham Lad


You can need at least a 300gpd room for what is your tap tds

County Durham Lad

It's 400 gpd ro and I've just started doing tops to start with so i don't use too much water at moment but I'll be switching over totally it's so much easier my tds straight out of tap is 064ppm it's all new to me pal I've been doing trad since 1992 i live in Sheffield

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[Iron Giant]

You will need a booster pump without a doubt and some John Guest tubing, PF told me I would get 3 metres with mine but I didn't get any 

 

[Andrew Ellis]

You will need a booster pump without a doubt and some John Guest tubing, PF told me I would get 3 metres with mine but I didn't get any 

Where did you get your booster pump from pal

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[spruce]

It was 75 bar for a while when i set it up a month ago but lately it's dropping below 50 bar and it's just trickling out now

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1 bar = 15psi

50 bar = 750psi

75 bar = 1125psi

The gauge looks like it is in kpa which is kilo-pascals.

50kpa = 7psi

75kpa = 11psi.

Thats pretty poor.

If the water pressure coming into your residence is that low then you need to speak to the water authority. Your will know if you open a tap in the kitchen and water 'dribbles' out. If it isn't, then you need to identify where the problem lies.

Firstly, have to got the r/o waste setting on flush?

Take the pipe off the r/o inlet and open your supply. If the water flows out of that rapidily then the issue is in the r/o. Reconnect the pipe.

The first filter is your sediment filter. The second is your carbon filter. Take the pipe off the inlet to your carbon filter and turn the water on again. If water rushes through that then the sediment filter isn't your problem. Reconnect the pipe. If it doesn't then you have found the restriction. The solution is the replace the sediment filter. Then try to trouble shoot the source of all the sediment that has blocked the filter.

Then remove the pipe from the outlet from your sediment filter and repeat the process. If water rushes through that then the carbon filter isn't your problem. Reconnect the pipe.

What you are doing is looking for the place where there is a restriction.

When processing water, what is your pure to waste ratio?

 

[Iron Giant]

I would get back home ASAP if you have left your RO on flush as your membranes can be damaged beyond repair and you will have to spend over a £100 to replace them 

 

[Andrew Ellis]

I would get back home ASAP if you have left your RO on flush as your membranes can be damaged beyond repair and you will have to spend over a £100 to replace them 

How do i know if it's on flush or not pal

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1 bar = 15psi
50 bar = 750psi
75 bar = 1125psi
 
The gauge looks like it is in kpa which is kilo-pascals.
 
50kpa = 7psi
75kpa = 11psi.
Thats pretty poor.
 
If the water pressure coming into your residence is that low then you need to speak to the water authority. Your will know if you open a tap in the kitchen and water 'dribbles' out. If it isn't, then you need to identify where the problem lies.
 
Firstly, have to got the r/o waste setting on flush?
 
Take the pipe off the r/o inlet and open your supply. If the water flows out of that rapidily then the issue is in the r/o. Reconnect the pipe.
 
The first filter is your sediment filter. The second is your carbon filter. Take the pipe off the inlet to your carbon filter and turn the water on again. If water rushes through that then the sediment filter isn't your problem. Reconnect the pipe. If it doesn't then you have found the restriction. The solution is the replace the sediment filter. Then try to trouble shoot the source of all the sediment that has blocked the filter.
 
Then remove the pipe from the outlet from your sediment filter and repeat the process. If water rushes through that then the carbon filter isn't your problem. Reconnect the pipe.
 
What you are doing is looking for the place where there is a restriction.
 
When processing water, what is your pure to waste ratio?
 
 
 

Cheers pal

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[Iron Giant]

How do i know if it's on flush or not pal

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Cheers pal

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You will have a tap something like this one, and if it's on flush the waste will be a lot faster than the pure output. But bare in mind that waste is always a bit faster than pure output anyway again have a good read through my post as their is a lot of information and knowledge about a ro https://windowcleaningforums.co.uk/topic/26751-ro-production-nightmare/

 

[Andrew Ellis]

You will have a tap something like this one, and if it's on flush the waste will be a lot faster than the pure output. But bare in mind that waste is always a bit faster than pure output anyway again have a good read through my post as their is a lot of information and knowledge about a ro https://windowcleaningforums.co.uk/topic/26751-ro-production-nightmare/
View attachment 14419

That's it pales far as I'm aware it's off [emoji848]

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[robert mitchell]

The bit at the top is the flow restrictor , the tap is the flush valve , in the pic that is in the correct position to produce pure .

If you turn the valve inline with the pipe that is to flush .


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[Iron Giant]

If your tap pressure has dropped that much you need a booster pump, But do as @Spruce said and check for restrictions into and through the RO if you haven't already, Also by checking pre-filters this will determine if their is a issue with one of the pre-filters also whilst checking everything take tds readings of your tap water and pure output with a 1 month old RO you shouldn't be having issues.

Take off the sediment housing and check if the filter is gritty if it feels gritty to the touch you have high sediment then put the filter to one side and replace the housing without the filter in it and turn water supply on and to check flow and tds reading and see if the flow improves, Then replace the sediment filter in it's housing and do the same test with the carbon filter and report back 

 

[Skxawng]

I would get back home ASAP if you have left your RO on flush as your membranes can be damaged beyond repair and you will have to spend over a £100 to replace them 

Why would leaving it on flush damage the membranes?

 

[Iron Giant]

Why would leaving it on flush damage the membranes?

It fouls the membranes I did it weeks ago for 8 hours or so and it was fine, But 2 weeks ago I did it around for possibly 2 days running and shot my membranes to bits this also had a negative impact on my prefilters as well I don't know the full and informed answer but this info Doug Atkinson of Daqua.co.uk got from Axeon the membrane manufacturer in the USA

County Durham Lad

 

[Andrew Ellis]

If your tap pressure has dropped that much you need a booster pump, But do as[mention=125]Spruce[/mention] said and check for restrictions into and through the RO if you haven't already, Also by checking pre-filters this will determine if their is a issue with one of the pre-filters also whilst checking everything take tds readings of your tap water and pure output with a 1 month old RO you shouldn't be having issues.
Take off the sediment housing and check if the filter is gritty if it feels gritty to the touch you have high sediment then put the filter to one side and replace the housing without the filter in it and turn water supply on and to check flow and tds reading and see if the flow improves, Then replace the sediment filter in it's housing and do the same test with the carbon filter and report back 

I've just had it to bits like you said and as soon as i took the the carbon filters out and replaced the housing the water pressure back up to 75% and i checked my tds and it was 000 so I've not replaced the filter Do i need a new carbon filters now @irongiant and thanks I'd have been stuck without everyone's advice

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[spruce]

I've just had it to bits like you said and as soon as i took the the carbon filters out and replaced the housing the water pressure back up to 75% and i checked my tds and it was 000 so I've not replaced the filter

Do i need a new carbon filters now @irongiant and thanks I'd have been stuck without everyone's advice

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Stop production and put a new carbon filter in. Carbon filters remove chlorine and chlorine destroys membrane material.