Im having a bit of trouble with my Spitfire, it seems to be constantly dumping water to the waste tank, at first i thought it was my thermostat not working causing the water to contantly dump, bit ive had the machine running cold water, (cold at wand end) and still get the same problem, ive cleaned out the Oroface and the Y strainer but still to joy. Its a real problem for me becuase the machine is now using a full 100 gallon tank on a 5 * 4 and a HSL whereas before we could comftably do a full house before with no problems. any WW2 Veterans know anything about these machines?

.
Help!!!!