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Old 01-11-2014, 03:55 PM
krashappy krashappy is offline
Join Date: Jan 11 2014
Posts: 2
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Default one way valve at pump

Hi, Newbie here, i have the canister model pump (non AC btw). Outside of the manual plunging diaphragm mechanism. Is the presence of a separate one way valve possibly a difference between the two?
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