Where to blow out line (picture)

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Originally Posted by waste

5) For a shop vac, an SP1091-Z-7 works well (they're also called backwash adapters) If you're using an air compressor, they make expandable rubber plugs with a 'tank valve' (Like to fill a tire) that will do the job

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Where can I buy this expandable plug with the tank valve? I have plugs, but have never seen them with a valve

Sniffmo, sorry for the delay in responding :( . Welcome to the forum!! I finally found an answer for you - please check http://www.poolforum.com/pf2/showthread.php?t=6202.
Sorry for the delay, but the info was just posted yesterday - hope it's not comming too late!!
Good luck with your closing, and if you need anymore help - just ask!!
Again, welcome to the forum, I look forward to seeing you here next spring. - Waste