tepid

hi, I have a recently installed Crosswater MikePro 1500C Thermostatic shower running off of a Monsoon 3Bar standard booster twin pump. The Crosswater shower was running ok for a couple of months however has recently started to run tepid even if the temp setting is set to the maximum. If I...

I have an en suite shower which runs Luke warm but when i turn the bath tap on right next to the shower, the shower water heats up. It sounds like too much cold in the shower valve but what is the cure? Thanks