What I learned winterizing

[awellis3]

Here in ol' Virginny, the winters are a mix of cold spells (so winterizing is called for) and warm spells (when camping is called for). As a result, we winterize and recomission several times a season.
Our first time winterizing Rocky was in November. We camped for New Year's Day and I just did it again. Here's the discovery: the low point drains on the 2604WS are low enough in relation to the water filter and water heater to create suction that pulls water from both appliances. I don't have to remove the drain plug from my WH to empty it.
(I removed the drain plug the first time I winterized and found the WH empty. I wanted to be sure this wasn't a one-time thing so I removed it again yesterday to find an empty WH again.)
I also noticed the filter housing had been syphoned to about a 1/4" of water making filter cassette removal a cinch.

Teach

[ependydad]

Teach, Herk has warned on the forums that draining you water heater that way can pull bits of anode into the water lines and gunk up various appliances (toilet, faucets).

[awellis3]

I never thought of that. I'll check the run of the cold water line.
I believe the WH drains from the cold line directly to the low point drain on my trailer. All other cold water (or hot, for that matter) faucets and toilet are above the WH. I suppose contaminants could clog the bypass valve, though.
Thanks for the heads up,
Teach