The proper shock sanitization with Clorox vs. Stainless Steel for
potable water systems is:
1/4 - 1/2 oz. clorox per 10 gallons of tank water capacity @ a soak
time of ****NOT TO EXCEED 1 HOUR*****, then flush. This is standard
'water industry' shock sanitization procedure. The industry standard
versus stainless steel is 10-20 parts per million (ppm) of chlorine
for one hour. Clorox is a 5% solution (50,000 parts per million - ppm).


Caution: this is a shock sanitization schedule for CLEAN
tankage/system - one that does NOT contain a biofilm. Biofilms (active
bacteria colonies) are denoted by simply wiping one's finger on the
tank walls and if 'slippery' equates to the presence of a biofilm. If
a biofilm is present and mechanical methods (scrubbing, etc.) is not
possible, then many repeated shock sanitizations are needed as shock
sanitization will only kill/stun the surface layer of a biofilm
(bacteria colony) leaving viable cells underneath to reinfect. So, if
you have a biofilm and cant scrub it away you must use ***repeated
shock sanitizations*** - interspaced with high velocity flushes of
plain water - at the above 'mix' to prevent chloride attack of the
stainless AND to kill all the viable cells adhering to the walls.

Active mechanical scrubbing (soap and water) to release the biofilm
followed by shock sanitization is the BEST method of cleaning.

If you live in an area that the water is infected with Giardia or
Cryptosporidium you MUST use at least an NSF rated 1,0uM (absolute)
rated filter when charging the tank. Giardia and Crypto are immune to
chlorine sanitization methods.

hope this helps.


In article RxXsg.98975$IZ2.81346@dukeread07, Bill
wrote:

--


Bill
"Jim," wrote in message
...
I just traded boats, and the new (to me) one has what appears to be a
stainless water tank (my old boat had plastic). In the past I'd fill the
tank and add a glug of Clorox to it to kill any bugs that might have joined
me during the interim.

Something in the dark recesses of my brain says Stainless and Clorox don't
mix.

Comments; Suggestions please!

Buy Peggy's book. Everything is in there.