New Whale Pump

Tex66
Tex66 Forum Participant Posts: 1
edited May 2015 in Caravans #1

HI All .. Just renewed my external whale pump (crystal 2) & it intermittantly pumping while theres no demand for water into the 'van. Ive checked the pump & its ok. However there seems to be a small amount of water under the waterheater, my Q is if the waterheater
has a small leak would the pump activate to 'top up' & what sort of pressure do these heaters run at ? My more experienced mate says check the pressure relief valve but how do I do this, 'van is Lunar Premier 415, 1995my