I am a new owner of 1978 35.5 and was winterizing the fresh water system today. She has 2 water tanks, 1 molded into the bow under the vee berth (est 30 gal) and 1 under the starboard settee (35 gal-black, flexible plastic bladder). Does anyone else have this setup? This is Dieter Empacher's boat so not certain what is consistent w/ other 35.5, same vintage. If yes, how did you winterize the sink in the head? I was able to get propylene glycol pumped thru the 2 galley faucets (1 manual, 1 via electric pump) but not thru the head. In fact the water flow in the head sink is minimal..She has a water heater but I haven't detected any warm water, even with the engine running for 15-20 minutes. thanks
dave
dave