256bit Posted August 10, 2017 Share Posted August 10, 2017 (edited) So my previous owner caulked the water heater in, on the backside of the rim with the screws. He caulked it directly to the fiberglass Since it's under the rim, how do I loosen the caulk? By shoving a razor blade in there? I don't want to damage the fiberglass. I thought about coming in from behind it, inside the rv, and hitting it with something like a dead blow hammer, but there isn't enough room. Edited August 10, 2017 by 256bit Quote Link to comment Share on other sites More sharing options...
John Jamieson Posted August 10, 2017 Share Posted August 10, 2017 Whether or not the water heater will come loose by hitting it from behind depends on the caulk that was used. Some of the polysulfide caulks have a very tenacious hold and you could easily damage the siding by forcing the water heater out that way,. I would recommend carefully cutting the caulk from the outside with a SHARP knife or box cutter. Go slow and pry gently. Its fussy work but you'll get there. John Quote Link to comment Share on other sites More sharing options...
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