www.iFourWinns.com

So, I replaced the sender in the waste tank July of 2011. And now I just got the flashing light, fresh water sender still works fine. We pump out every weekend, so, I am not too worried about overflowing the tank. Fireboy says that the sensor does not like a vacuum. Well, why do they make waste tank senders that don't like a vacuum? Don't they realize the sender will be under a vacuum when you pump out? Just wondering if I should even bother replacing it...Or if anyone else has any tricks? Or just buy a new one, and see if it will last any longer than 2 years....

Turns out Fireboy-Xintex says that the amount of vacuum from pump out should not affect the sender. Only if you had so much pressure that your tank was collapsing would the sender be in danger. Well, even though the sender only has a one year warranty, since I had my receipt from date of purchase, they are sending me a new one for free. Wow, someone with good customer service!!! Thanks Fireboy-Xintex!

Those are crappy sensors, pun intended. I yanked mine and got a replacement Dometic unit. It's worked great since. Had to install a new monitoring gauge but it was worth the effort to be rid of the constant problems with the Xintex unit.

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-Bill Kearney, 2005 348 Vista