I don't want to sidetrack this conversation by asking dumb questions, but here goes: If it's a bottom dump system into a bucket, what prevents the sheer force of water exiting the bottom drain from making a huge splashing mess?
Good question. I was thinking a plumbing valve. I've used these before at the base of 400 gallon tanks and they worked fine.
I thought you were having a hose to the outside of the building. If thats the case there is no mess under the tank. And you might be closing the valve by the time the water is even getting to the outside bucket.
