My central heating is properly sludged up, and most radiators are half working at best. It's an old leaky system so I don't want to powerflush.
I am currently running Sentinel x400 through the system, but I have 14 radiators, most of them large, so really should be using two bottles.
The stuff is so expensive. Has anyone tried the cheaper home-brand alternatives from some of the plumbers merchants? Do they work well? The cost is 60-70% lower, so if they do the job why use Sentinel.
I am currently running Sentinel x400 through the system, but I have 14 radiators, most of them large, so really should be using two bottles.
The stuff is so expensive. Has anyone tried the cheaper home-brand alternatives from some of the plumbers merchants? Do they work well? The cost is 60-70% lower, so if they do the job why use Sentinel.