We had a shower pump installed as part of a bathroom refit around a year ago. The pressure has always been a bit variable so that normally at the start of a shower, the pressure is often poor but after several minutes it improves.
Recently, there seem to be more and more showers whereby the pressure doesn't improve and stays poor for 10 minutes or so. I'm at a loss of how to troubleshoot this and I don't know if its the mixer or something wrong with the pump/tank installation.
The HW tank is particularly large (can't recall the height but about 50% bigger than the one that was there before) and there is a techflow flange at the top (pump is also techflow middle presure one).
With the pump powered off, it seems the hot and cold pressures are about the same. When its on in normal operation, its easy to get a strong pressure of pure cold water but not hot.
Could it be that I need to fit a side flange?
Its a normal hot water tank in airing cupboard with pump on the floor arrangement and cw tank is high up in loft.
Thanks for any thoughts on this.
Recently, there seem to be more and more showers whereby the pressure doesn't improve and stays poor for 10 minutes or so. I'm at a loss of how to troubleshoot this and I don't know if its the mixer or something wrong with the pump/tank installation.
The HW tank is particularly large (can't recall the height but about 50% bigger than the one that was there before) and there is a techflow flange at the top (pump is also techflow middle presure one).
With the pump powered off, it seems the hot and cold pressures are about the same. When its on in normal operation, its easy to get a strong pressure of pure cold water but not hot.
Could it be that I need to fit a side flange?
Its a normal hot water tank in airing cupboard with pump on the floor arrangement and cw tank is high up in loft.
Thanks for any thoughts on this.