I've been having a few issues with my heating (covered in another thread ) currently circulating x400 around my system but when I drain and flush next week I'm going to take the opportunity to remove the head from my pump and check if it's ok, turning freely, nothing broken from impellor, play in the bearing any obstructions is that correct? Any tips on what to look for or tests I can do to prove its good or bad would be appreciated.
If it's on its way out I will change the head. I have attached images below, 1st (blue) the pump in question and the others are possible replacements, there's quite a difference in price from grundfos, which I don't mind paying but wondered if these will replace the existing head an if so does anyone have experience of these pumps and they're quality/reliability or are they that price for a reason?
If it's on its way out I will change the head. I have attached images below, 1st (blue) the pump in question and the others are possible replacements, there's quite a difference in price from grundfos, which I don't mind paying but wondered if these will replace the existing head an if so does anyone have experience of these pumps and they're quality/reliability or are they that price for a reason?