Went to an isar which is leaking water from the pump . so ive ordered a new pump , will it come with the manifold???? as the old one is leaking between the manifold and the pump . Also I was hoping to leave them with it working just needing re pressurising untill the new pump arrives but when it calls for heat it trips the rcd on the fusebox this is surely just because the pump is knackered or could there be another fault on this piece of junk???? it was working perfectly untilll the owner went on holiday and came back yesterday and put it on all night last night .