djreef
Guest
Do yourselves a favour. If you own a Visitherm heater more than 3 years old - replace it ASAP with something that doesn't produce fire underwater. The one in my FOWLR setup exploded in my sump this weekend. Fortunately, I was there to take care of everything. If I hadn't been, God only knows what would have happened. After doing a little research, I found that these heaters are known for seal failures in systems where heavy dosing is involved. Well, now they are also known for failing in systems where no dosing was involved.
DJ
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DJ
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