Find an old tempered window glass,break it and put the pieces in the tank and shake it,use a shop vac.to get it back out.CAUTION,wear gloves when you handle the glass.
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Floyd

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Floyd

If we choose being kind over being right,we will
be right every time.
Knowledge is a poor substitute for experience.
Remember what is precious to another, may not be to you, but it
is precious nonetheless.

1948 Chevy 2-Ton