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07-07-2005, 09:59 AM

Confirmed new twp cartridge can get zero reading also.....

Depending on how deep is my pocket, I replaced the cartridge if it exceeds 10% to 20% of the reading from tap water.

07-07-2005, 09:59 AM	#22
nim75sg Guest Posts: n/a	Confirmed new twp cartridge can get zero reading also..... Depending on how deep is my pocket, I replaced the cartridge if it exceeds 10% to 20% of the reading from tap water.