Water in tank smells

toddh

Active Member
Jun 23, 2009
151
Southern Indiana
Boat Info
260 Sundeck
Engines
350 MAG
Our water that we use to spray off our feet when getting back on the boat, smells like rotten eggs. Have not had this smell before. I usually go through a tank every couple weeks. Any way to get get rid of the smell?
 
Drain it, put in a cup of bleach refill to half or so, and go for a spirited ride to slosh it up.

Drain again and fill it up... then use it! Don't let it sit in there for weeks.
 
The rotten egg smell could be coming from bacteria in your hot water tank. Make sure to run the treated water through the hot water system.
 
drain it completely. I would start with a cup of bleach to a full tank. let sit for an hour or so, then drain again. I put a capful of bleach in mine for every 30 gallons to maintain it after that...
 
My long term plan to avoid water smells.

**Wintererization **
Bypass the water heater (let it drain)
Disconnect the water tank (let it drain)
winterize the remaining water systems with a 5 gal bucket

**Spring Time **
Spring time, flush the lines with the city water hookup (to clear out the antifreeze)
Add 10 gallons of water to the tank (estimate) and a 1 gal of bleach.
open each tap, wait for the bleach smell
let it sit for an hour (or longer)
Fill and empty the tank 3X (running through each tap)

Use the tank water all the time not the city water hookup

Modify as needed, but this has been proven for my boats over each year. I NEVER have a water smell
 
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These recommendations to use large quantities of beach are not good advice as they will result in damage to your VacuFlush heads if you have one. Dometic cautions against using bleach products in their various manuals. Likewise, accepted procedures for sanitizing water tanks do not call for pouring a gallon of bleach into water tanks. Bleach is fine to use. Just use it as suggested by the manufacturers of water treatment products. Read the labels. It does work.
 
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