CAN ANYONE HELP? JUST BEEN AWAY FOR FIRST TIME IN OUR 1992 SWIFT CHALLENGER. FILLED THE AQUAROLL, IMMERSED PUMP, ALL TAPS RUNNING ON THEIR OWN OK, APART FROM THE KITCHEN COLD TAP. THIS WILL ONLY RUN WHEN THE COLD TAP IN TOILET IS ON. TURN OFF TOILET TAP AND FOR SOME REASON THE KITCHEN STOPS ASWELL. THE PUMP RUNS OK ON ALL TAPS BUT DOES NOT RUN WHEN KITCHEN COLD ON.ALSO SEEM TO BE GETTING A VACUUM CREATED ON THIS KITCHEN TAP AS YOU CAN FEEL IT SUCKING AIR AFTER IT HAS BEEN ON. ALSO I CANT SEE A PRESSURE SWITCH ON WATER SUPPLY.THE PIPEWORK FROM THE PUMP FEEDS THE HOT WATER HEATER AND THE TOILET TAPS, THEN IT LOOKS LIKE THE FEED COMES FROM THERE TO THE KITCHEN. ANY ADVICE.