The comment I have seen is that if the stored hot water temperature is too high eventually the hot end O ring will shrink and a leak will develop.
This pump is probably around fifteen years old and works fine apart from the leaking O ring. I don't have a vernier caliper rule to measure the O ring and the house is being sold, so the customer said get a new pump at a cost of £320 then call back to fit it to avoid any hassle with the purchasers of the house.
If there was more time and the customer was not selling the house I would considered measuring the O ring and ordering some online or calling st the bearings wholesaler next to the electrical wholesaler I use.
A couple of quid to get some O rings plus some Nylock nuts versus fifty quid for a service kit or three hundred and twenty quid for a new pump.
It comes down to how long you can reasonably extend the life of a fifteen year old pump and at what cost with customers expectations to be considered as well, you could fix the O ring leak only for something else to go wrong.
I bedded the O ring back in with some silicone grease and tightened the end plate down in sequence, but it still leaked.
I was considering if a O ring kit on the van could give a quick fix with one visit.
The comment I have seen is that if the stored hot water temperature is too high eventually the hot end O ring will shrink and a leak will develop.
This pump is probably around fifteen years old and works fine apart from the leaking O ring. I don't have a vernier caliper rule to measure the O ring and the house is being sold, so the customer said get a new pump at a cost of £320 then call back to fit it to avoid any hassle with the purchasers of the house.
If there was more time and the customer was not selling the house I would considered measuring the O ring and ordering some online or calling st the bearings wholesaler next to the electrical wholesaler I use.
A couple of quid to get some O rings plus some Nylock nuts versus fifty quid for a service kit or three hundred and twenty quid for a new pump.
It comes down to how long you can reasonably extend the life of a fifteen year old pump and at what cost with customers expectations to be considered as well, you could fix the O ring leak only for something else to go wrong.
I bedded the O ring back in with some silicone grease and tightened the end plate down in sequence, but it still leaked.
I was considering if a O ring kit on the van could give a quick fix with one visit.
