Air lock in R.O??

Hi guys,

I changed the membranes on my R.O last Thursday, my storage tank was already full so didn’t really turn them on till last night after I filled my van up. When I left this morning my r.o & booster pump were humming away. But I’ve just got home to find my booster pump running dry and my storage tank at the same level it was at 8:30 this morning... the r.o isn’t producing anything, as nothing is going into the d.i.

really weird. Is it a possible air lock? Really frustrating 

Forgot to say, the waste is coming out (although a lot slower than normal) 

*ive taken the membranes out, put them back in, tried sucking through any air, it’s a real STRESSFUL head scratcher.... if anyone is in the Bournemouth area and loves problem solving please can you pm, I’ll happily pay you for your advice of what to do....

they in the right way around?

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Redditch windy said:

they in the right way around?

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Yeh, I wasn’t sure when I was changing them, so I rang waterfedpole.com, the technician confirmed which way them go, and as I said I was filling it up yesterday evening & through the night.... it’s so weird. Water is going into & out of the booster pump but not end up in the tank...

This is the r.o

Could also be an airlock in the pump or one of the pre filters?

Nudel said:

Could also be an airlock in the pump or one of the pre filters?

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Yeh I’m thinking that, how would I get it out? 

The only way to get rid of a stubborn airlock is to take the pipes off one by one until water runs through. Start with the water inlet and if necessary unscrew the filter bowls in order the water goes through. PITA but sometimes it’s the easiest option!


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On them membranes in the shaft there is a little lever of some sort. I think maybe wrong they have to be pushed in for pure water to be produced.

doug atkinson said:

On them membranes in the shaft there is a little lever of some sort. I think maybe wrong they have to be pushed in for pure water to be produced.

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Yes, I’ve just double checked, the little plug/lever is in it.

AGlassAct said:

The only way to get rid of a stubborn airlock is to take the pipes off one by one until water runs through. Start with the water inlet and if necessary unscrew the filter bowls in order the water goes through. PITA but sometimes it’s the easiest option!


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Ah wow really!? Flipping heck. 

[email protected] said:

*ive taken the membranes out, put them back in, tried sucking through any air, it’s a real STRESSFUL head scratcher.... if anyone is in the Bournemouth area and loves problem solving please can you pm, I’ll happily pay you for your advice of what to do....

Click to expand...

Might sound sound silly but did you take the plastic film off the membrane? If it’s an air lock open the waist fully turn on the tap and booster pump it should flush any air out ,then slowly shut the waist untill you get the desired flow to the Di , cheak that you have the connections on the right way round 

Pjj said:

Might sound sound silly but did you take the plastic film off the membrane? If it’s an air lock open the waist fully turn on the tap and booster pump it should flush any air out ,then slowly shut the waist untill you get the desired flow to the Di , cheak that you have the connections on the right way round 

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Yep plastics all off.

ok I’ll try flushing it out. 

Thanks 

Flushed it out for a while, still exactly the same. The waste is no where near as powerful as it should be with the waste on full 

I really appreciate your help though guys. This is sadly stressing me out quite a bit

I guess as a emergency for now I can put it through just the Di. How long does resin last with 275ppm water ??

You have the same TDS as me - when I did a large solar job I used double DI on site. If I remember correctly I got around 2700ltrs of pure from 25ltr of resin.


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Ok. Cheers 

[email protected] said:

Ok. Cheers 

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Just curious for your sake did you manage to fix it?


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Qwerty Cleaning said:

Just curious for your sake did you manage to fix it?


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Thanks for asking.

No. It got too dark last and tonight I didn’t get time, had to buy my water. I’ll finish work a bit early & look again tomorrow.

[email protected] said:

Thanks for asking.
No. It got too dark last and tonight I didn’t get time, had to buy my water. I’ll finish work a bit early & look again tomorrow.

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Good luck with it mate


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