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Old 07-03-2022, 10:48 AM   #19
SoWhat
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City: Boston
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Join Date: Nov 2016
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You can buy an adapter cap for Groco strainers. I use it every fall to fill raw water system with anti-freeze. Easy to use and works well.

Trac Ecological 1285-B FLUSHcap - 2.5" (Medium) an Amazon
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