negative head

Hi All.. I'm hoping someone might be able to help me with this one..... I have a Stuart Turner Monsoon N1.5 Neg Head Pump fitted for a small Shower Room in my Attic. The pump works perfectly, but has never delivered 100% correctly from the time of install which was in 2012. The pump is located...

Hi all, first things first i had a concealed mixer shower installed and my shower pump did not kick in unless i dropped the shower head below the level of my tap heights. The bathroom installers were baffled, so they suggested uprating my shower pump which was a salamander 1.5 bar to a 3.0 bar...