Industrial strength descaler?

pimento

Ah, OK. Thanks

woj101

Thanks all for your responses - sounds like some good ideas well worth trying.

gas4you wrote: »

I am in a very hard water area, but have only come across one plate that had scaled up on the domestic side.

99% of the time it is the system side that sludges up causing the problem.

I always carry DS3 on the van though for other de-scaling tasks.

I don't quite follow - could you explain what you mean by the system side? The flow of hot water has dropped fairly rapidly in the last couple of weeks. It was gradual over the last 12 months, but is markedly slower now, out of all of the hot taps in the property.

Is there any way I could confirm that it is sludge, and is this a user-serviceable issue?

woj101

Issues have intensified today with OH refusing to get in the shower. I can't really fathom why the fall off has been so rapid.

I'm going to have to act on it today or tomorrow. Does anyone else have any interpretation to offer over what gas4you said - i.e. sludge on the 'system side' - how could I verify this and can I do anything to sort it before having to call someone in?

Thanks very much.

Owain_Moneysaver

woj101 wrote: »

I don't quite follow - could you explain what you mean by the system side?

The water circuit that goes round the radiators accumulates sludge.

It's completely separate from the water that comes out of the taps, which accumulates scale because it is always heating new water.

woj101

Well it's definitely the domestic hot water that is the problem and not sludge in the heating system - it's as if the pressure has dropped right down, the rate of flow out of the hot taps is very low. It's still hot, but as soon as you turn on the cold supply to mix it there's too much cold water for the amount of hot, so the end result feels cool.

As said originally, this happened gradually like this once before a few years ago - getting the heat transfer plate replaced fixed it.

I think I need to replace it again, but don't know if it's worth descaling the old one or just buying a new one. Depends on how effective the descaling could be - would it make it 'like new'?