salamander twin impellor pump fitted under sink to boost tank fed supply to hot at sink, basin, shower, been in 10yr problem now is that if you open sink or basin tap -pump runs ok
open hot at shower valve, cold at shower and basin pump doesn't switch on,BUT if youopen hot at basin then turn off and open shower or cold basin before pump cuts off the shower h&c and cold at basin runs perfect????????
open hot at shower valve, cold at shower and basin pump doesn't switch on,BUT if youopen hot at basin then turn off and open shower or cold basin before pump cuts off the shower h&c and cold at basin runs perfect????????