New Calorifier query

[Jim]

AS some may know, we recently got our yard to fit a new hot tank with immersion etc. I noticed this week that when the water is hot, the hot taps operate without the water pump being switched on. This suggests that there is a build up of pressure from the calorifier which might be a problem and cause leaks in a couple of places. Our galley taps have a "push fit" fitting with rubber olives and when I tried to convert to a pressurised system years ago, water poured out of these fittings.

There is no real sign of severe leaks so far and I'm wondering if the installation needs an accumulator vessel

[MBA Marine]

your building pressure as the water expands with heat, a accumulator tank will give you some room for expansion on your system, especialy if you dont put to much air pressure in its bladder.

However i would be looking at the plumbing at your taps and changing that as it sounds like your having to run low pressures, no one likes having to press a switch for water, we like to just open a tap and out it flows.