Glass bulb

Adding chemicals, vacuuming, backwashing,
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Glass bulb

Postby ollie57 » Tue 19 May, 2009 15:15

Hi, could somone give me some advice please. While I was doing a backwash on my sand filter I noticed that the water in the little glas bulb stayed clear, normaly the water goes dirty then chages back to clear.

So Im wonering if it isnt backwashing properly. Has anyone got any ideras what the propbelm could be.

Thanks for any help.


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