black water tank bottom gunk removal ?

[girouard]

I just purchased and set up a 06 wildwood PT on a seasonal site, private sale. Crawling around under it it seems the black wat. tank has a sagging bulge to it. I"ve filled and drained it several times, but putting the wand down inside there seems to be sludge on the bottom of the tank, which may explain the bulge. I'm going to install a Tornado tank rinser soon but I don't know if it will take care of the current problem. I have the sewer line set up as permanant conn. but I do have the clear connector w/ flush line on it. I will be drilling a 1 1/8 hole for the tank rinser, maybe that could be usefull before it's installation. Any suggestions or methods to overcome this problem so I then can maint. it properly. Thanks in advance for any help.

[RKamperRV]

Putting the flush kit in will help resolve the problem, if there really is a problem. Over time, by flushing well after each use, the tank should come clean. Don't leave the dump valve open all the time. Let the tank fill, then dump, then flush. This will help prevent any future build-up.

[jperry29]

Rick is right. You need to have a full head of liquid, and it's accompanying pressure, to get the solids moving out and down the drain.

One thing I would add would be that to prevent a "teepee" or "cinder cone" from building, you should run enough water in the black tank after dumping to get the 1/4 full light to come on.

[jjhamick]

If you have a sagging bulge the water and what ever in that bulge will not drain. I would look into some meathod of pushing up on the bulge to flatten it out and hopefully the sediment that collected in the bulge will clean out.

[Ray,IN]

Next time your trailer will be vacant for an extended period, pour a bottle of "Roebic K40 septic tank and lateral line cleaner"(walmart) into the tank then fill with water. This should soften any sediment enough to flush out simply by draining the tank, then using your wand to spray remaining residue away.

[girouard]

Thank you all for your sugg's I will give them a try this weekend, hopefully with some success. Have a great weekend. Here in the N East its supposed to be like summer thru the wk.end. From Truro Cape Cod Thanks again.