We had alittle rough go dealing with our fresh water system this spring. Here it is july 1 and we just finished filling our tanks. First off, all kinds of flooding here in minnesota so the boats were very late getting in. I took the cover off the boat. I had a bilge 2/3 full of water. That was very unusual. Got the boat in .Had to wait 3 weeks to get the dock water turned on because of the flooding. All the lines broke when the docks were raised by the flooding. We finally got water. Attempted to fill the tanks and pump the antifreeze out. My wife says to me, hey shav come down here, the water is running all over the floor. Lift up the cushion over the water heater and see a bulged out water heater end and water all over the place. Well, one bracket on the bottom of the heater is rusted off so I go on the internet and order a 6 gallon seaward repl. for 172 no sales tax and a 55 dollar savings over boat us. no shipping over 50. takes ten days to get here. thats ok. We installed the heater on a day when the temps inside the boat were 90+. Everything went as expected. all the fittings were exactly the same and the wiring did not change. Last fall we bought a new pump and i put an accumalator in line. both from shurflo and both worked fine. As we were filling the tanks we put the water pressure switch on so we could empty the antifreeze and BAM, the accumulator blew up. What happened? I bought a piece of water line and took the accumulator out of the system and finished my work. Everything works fine except my blown up accumulator. This two hour job took only six hours. By the way, our heater has back mounted heatexchange hoses. you have to make a choice when you order the replacement. craig