Oxypic causing high pressure?

LisaB2023 · Jan 18, 2023

Hi all! We had low pressure in our Potterton boiler (gas) and the guy who serviced it recommended to try Oxypic. We did that last weekend and re-filled the water making sure it was turned off. However the water has started to increase and now it’s in the red (too high pressure). Any idea what’s going on? Thanks!

gmartine · Jan 18, 2023

A sealer is never a good idea or just a temporary measure and that was your plumbers suggestion to resolving your low pressure issues?

LisaB2023 · Jan 18, 2023

gmartine said:
A sealer is never a good idea or just a temporary measure and that was your plumbers suggestion to resolving your low pressure issues?

Yes, he said in his experience it solved 70% of low pressure issues and so if it didn’t solve it we’d have to look for the leak, but based on the age of the house (1920s), he expected the sealer should do the job

LisaB2023 · Jan 18, 2023

LisaB2023 said:
Yes, he said in his experience it solved 70% of low pressure issues and so if it didn’t solve it we’d have to look for the leak, but based on the age of the house (1920s), he expected the sealer should do the job

Just to add, I’ve notice the pressure gauge dropping back to normal levels when the heating has shut off? Could it be that it goes in the red when the heating is on, and back normal range when heating is off and it’s ok?