I blogged here about my waterworks problem on Waterlily. I received some sound advice and took the decision to do a full upgrade rather than a bypass repair. I cannot see us upgrading boats for some time so we might as well have the benefit from heated water from the back boiler and hot water for longer. Plus the replacement has a immersion heater element that I will wire up for it we are on shore line or powered by the genny.
The Surecal Calorifiers in Midland Chandlers were a whopping £430 so I brought direct from Surecal for £350 I also made a good saving on an expansion cylinder that my system does not have at the moment. I ordered it when in Cornwall and it was delivered on time so top marks for Surecal.
A trip to B&Q for loads of fittings - good thing is you can take back what you don't use so I always over stock just in case. The biggest challenge will be the pipe runs as the old cylinder was fed both ends and the new one is all one end. I have oped for plastic as its simple and hopefully a little more frost resistant but it will all be lagged when completed. So an update later maybe.....
9 hours ago