[Simon Trapani]

I said a softener from the beginning.

And people that say that it doesn’t also slightly reduce tds, all I know is if I turn both isolators to the softener off on my static the tds does rise slightly. I had too small a vessel at one time & it was in need of regeneration (backwash) before I’d filled the ibc overnight.

I think soft water is supposed to slowly eat away at calcium deposits. Not if it’s excessive  though.

[John Mart]

I said a softener from the beginning.

And people that say that it doesn’t also slightly reduce tds, all I know is if I turn both isolators to the softener off on my static the tds does rise slightly. I had too small a vessel at one time & it was in need of regeneration (backwash) before I’d filled the ibc overnight.

I think soft water is supposed to slowly eat away at calcium deposits. Not if it’s excessive  though.

Hopefully that's all it is, but I'm not convinced.

[John Mart]

Still not solved as it’s getting slower. To the point where I’m just going to have to swap the membrane as it’s taken 24 hours to produce 1,000 litres without trying to solve the issue first. I will ofcourse be checking for any “slime” when I open it.

To add regarding the water softener. According to June at Gaps it is not fit for putlrpose as with the volume being produced I’ll need to refresh the resin at least twice during a fill and it’s not an auto flush one. I’ve gone back to the supplier and I’m waiting for a call back.

[Smudger]

I see hf1 was mentioned is that the membrane your using ?

Darran

[andyM]

I reckon "the incredibly knowledgeable guy" from your local supplier has sold you a membrane not fit for your purpose. 

You need an Axeon HF4  from Gaps Water as they seem to be cheaper than other places. 

[Perfect Windows]

Still not solved as it’s getting slower. To the point where I’m just going to have to swap the membrane as it’s taken 24 hours to produce 1,000 litres without trying to solve the issue first. I will ofcourse be checking for any “slime” when I open it.

To add regarding the water softener. According to June at Gaps it is not fit for putlrpose as with the volume being produced I’ll need to refresh the resin at least twice during a fill and it’s not an auto flush one. I’ve gone back to the supplier and I’m waiting for a call back.

Last time I'm going to say it but your symptoms are identical to mine when it was bio fouling (it still might not be but looks suspiciously similar) . If it is and you don't deal with it, you're going to repeat this sequence forever replacing membranes ad nauseam.

Total cost of my solution is a 29p bottle of thin bleach the next time you change your membrane. Might not work but it's not going to harm anything.

Vin

[John Mart]

Still not solved as it’s getting slower. To the point where I’m just going to have to swap the membrane as it’s taken 24 hours to produce 1,000 litres without trying to solve the issue first. I will ofcourse be checking for any “slime” when I open it.

To add regarding the water softener. According to June at Gaps it is not fit for putlrpose as with the volume being produced I’ll need to refresh the resin at least twice during a fill and it’s not an auto flush one. I’ve gone back to the supplier and I’m waiting for a call back.

Last time I'm going to say it but your symptoms are identical to mine when it was bio fouling (it still might not be but looks suspiciously similar) . If it is and you don't deal with it, you're going to repeat this sequence forever replacing membranes ad nauseam.

Total cost of my solution is a 29p bottle of thin bleach the next time you change your membrane. Might not work but it's not going to harm anything.

Vin

I’m not ignoring what you’re saying, I will get another membrane on Monday and open up the housing when it arrives. If there’s any slime I will follow your process.   

[John Mart]

I reckon "the incredibly knowledgeable guy" from your local supplier has sold you a membrane not fit for your purpose. 

You need an Axeon HF4  from Gaps Water as they seem to be cheaper than other places.

It wasn’t the same guy that sold it to me. They’re a large company. But you may be right other than it was fine on install.

The consensus from Gaps and Kennet Water is that if there was a problem with the membrane it wouldn’t work correctly from the outset. Something has therefore caused it to foul hence my trying a water softener before swapping the membrane but the production rate has now dropped to the point that I won’t be able to refill the tanks fast enough for work. I reckon we’re ok until Wednesday as I should have 2,000 litres ready for Tuesday. I’ll see if I can pick one up somewhere on Monday.

[John Mart]

Down to a dribble now. 

I’ve 2,000 litres. So enough to fill all three after tomorrow’s work.

With hindsight I should have bought the membrane last week. I’m gonna try and pick one up tomorrow. Not sure if Aquafactors in Basingstoke stock them. Otherwise I’m relying on one turning up on Tuesday via courier.

[Go]

There’s a spotless in Basingstoke. You need a code to get in though.

[Slacky]

I reckon "the incredibly knowledgeable guy" from your local supplier has sold you a membrane not fit for your purpose. 

You need an Axeon HF4  from Gaps Water as they seem to be cheaper than other places.

Thats what Ive got. Works great with the booster.

[John Mart]

There’s a spotless in Basingstoke. You need a code to get in though.

Also, what’s just occurred to me is I have a full bag of resin, I can just double DI 2000 litres if I get stuck.

[John Mart]

Membrane is out. There's no calcium and no sliminess. I can't see any blockages. I'll just have to assume it was the wrong type of membrane.

[Smudger]

I think so hf1 needs twice the psi to work than a hf4

Although I can’t say that would effect production rate it would the TDS over a short time

Darran

[andyM]

Membrane is out. There's no calcium and no sliminess. I can't see any blockages. I'll just have to assume it was the wrong type of membrane.

Have you managed to buy/order a new membrane yet 8 weekly?
I ordered a new one at the weekend from Gaps Water on next day delivery hoping to receive tomorrow (Tuesday) but June has just emailed me to say the delivery truck didn't show today so will be at least 1 day later than expected.

[John Mart]

Membrane is out. There's no calcium and no sliminess. I can't see any blockages. I'll just have to assume it was the wrong type of membrane.

Have you managed to buy/order a new membrane yet 8 weekly?
I ordered a new one at the weekend from Gaps Water on next day delivery hoping to receive tomorrow (Tuesday) but June has just emailed me to say the delivery truck didn't show today so will be at least 1 day later than expected.

Yes I've ordered one from GAPS too. 

[John Mart]

I think so hf1 needs twice the psi to work than a hf4

Although I can’t say that would effect production rate it would the TDS over a short time

Darran

June reckoned the one I bought needed 200PSI.

[andyM]

Have you managed to buy/order a new membrane yet 8 weekly?
I ordered a new one at the weekend from Gaps Water on next day delivery hoping to receive tomorrow (Tuesday) but June has just emailed me to say the delivery truck didn't show today so will be at least 1 day later than expected.

Yes I've ordered one from GAPS too. 

That's alright then.
I thought she might of been telling me porkies and  given my one to you.