Quote:
Originally Posted by Sdkim
I think the video talked about 5-8 minutes to refill the tank (and flushing at the same time) to dump it out again.
I do that as well. I will refill the black tank using the built-in flush system, and then dump it again to get most of the contents out of the tank. I often have to do this multiple times to make sure the black tank is clear of the dirty stuff.
However, I use a water meter to ensure I don't over fill the black tank. Without a water meter, you have to time how long you fill the tank so you don't accidentally overfill it. I believe that is where the 5-8 minutes come into play. The time will depend on the water pressure at the dump station or campsite, and the size of your tank.
I have two black tanks at 40 gallons each. It takes me at least twenty minutes to empty and flush each black tank. Yea...it takes a long time. That is why I try to stay away from dump stations and do my dumping at a full hook-up campsite. This ay I don't have to worry about other RVer waiting for me to finish.
I like the water meter because I know exactly how much water I am putting back into the black tank before I dump it again. Sometimes I flush the tank several times to make sure I get all the dirty stuff out. After I flush the black tanks out two or three times, I will then release the gray tank to clean out the sewer hose with the soapy gray water. I really recommend the water meter. I will attach an Amazon link below, if interested.
https://www.amazon.com/dp/B00R85H1PM...ing=UTF8&psc=1
I hope I didn't confuse you. |
That is clear to me. I thought I was hearing 5 - 8 min to get in and out of the public sewer dump station
I follow the logic to know how long before filling the black tank. It was gap for me because I have always dumped my black tank in full 1st, then turn on the sani flush to do what ever it is going to do, it is going in and out at about the same rate. Never crossed my mind that the black tank could overfill in my situation. But in your case if black tank valve is closed I could see the concern.
But truth be told starting this week, with my new Jet flo macerator, I have not been using my sani flush to clean. Just the back wash fill from Gray tank. But if I am at campsite I will do both gray tank back fill flush & sani flush clean.
I guess this comes down to what is the advantage of filling the black tank with the sani flush (to worry about overfill) versus leaving valve open; so it is going in and out at same rate when Sani flush is being used?
As far as water meter goes, I like toys and that is a nice one to have. I could see using it for the fresh water fill though.
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