Humidity problems for large tank

[hawk]

Originally Posted by Delphinus

Another reason to consider the HRV and suck that moisture laden air out of the house. Or get the pipes covered (ie. behind drywall) so that they're not exposed to humidity.

The pipes in the drop ceiling were covered by hardi-board as well as the fishroom being vapour barrier-ed and tight. When I first noticed the dripping I did take the board down to check things out but then put the plastic back-up. Didn't notice a difference either way. I think the humidity in the drop ceiling (which is partially open on the laundrey room side next to fishroom) is coming from the rest of the house and outside. But the heat is coming from the fishroom. I only notice the drips when it is hot/humid outside. Too bad about pex dripping too. I am considering hrv for better household air quality, but it can be 30c here with heavy rain so the humidity can get very high. That along with the basement staying cool (except fishroom) I don't know if the hrv is going to do much in my case. I would just be exchanging cool basement air for hot humid outdoor air. Could be wrong, I'll have to check into it further. The fishroom is 11'x9', I wonder if a cheap window ac just to cool the small room would solve the sweating pipes? Any other suggestions?