Why would you change it.....

[Harvest Fields]

It worked well when hex pathways were big & they were made of cast iron. Now they tiny & made of ali they block cos oxy causes crap in system.

I don’t really fit alloy heat ex’s to be honest mate. Maybe that’s why I haven’t had an issue.

 

[king of pipes]

Tread carefully hear BG have screwed up and now you are being asked to pick up the pieces , a detailed breakdown and estimate of the work needed to put it right and a clause stating you will not be held responsible for any failure of existing pipework from pressurising the system again . Best of luck . Kop