Plumbing Issues

[GLE2]

Anybody have or know where I can find pumping schematics for the grey and black tanks on my 2015 Keystone Bullet 252BHS. I am having problems with sensor accuracy and been told may have 2 grey tanks.

[BFlinn181]

Having multiple tanks shouldn't effect the sensors, they are notoriously inaccurate. If you have multiple grey tanks, the manufacturer or a brochure on your model should tell you number and capacities of holding tanks.

You might hook up to a sewer and use a hose to test your tanks. Sometimes a lavatory sink is hooked to the black tank to add liquid to it and relieve load on the grey tank. Try pouring food coloring down a sink then dump each tank, looking for the food coloring. In addition, if you have two grey tanks, you might have two slide valves to keep them separate before dumping.

Many display panels for levels have adjustments. Check on the website of panel maker for instructions. Often you fill tank with water, then adjust tank display.

[halfwright]

The stock sensors on almost all RVs are known for lying. If you have 2 gray tanks, there should be 3 valves. One our Montana the galley tank drain valve is between the axles on the same side as the other valves.

[09 harley]

Install SeeLevel tank gauges and get rid of the terrible stock sensors. They are manufactured by Garnet Industries and are a great upgrade.

[RVGuy1966]

the only tank i care about is the black when being accurate. the two grey tanks i have will just overflow into the sink or tub telling me time to dump, i usually have the shower grey tank connected to sewer and open with a p trap type curve to it to trap odors. you can tell when flushing if the level us maxed out....

[BFlinn181]

Originally Posted by RVGuy1966

the only tank i care about is the black when being accurate. the two grey tanks i have will just overflow into the sink or tub telling me time to dump, i usually have the shower grey tank connected to sewer and open with a p trap type curve to it to trap odors. you can tell when flushing if the level us maxed out....

Most toilets are directly connected to the black tank, a quick glance down during a flush gives an idea as to level. If you constantly drain gray tank, what do you use to flush the sewer hose after dumping the black tank?

[kekker]

I had problem with tank sensors always reading high with only a gal. water in it.
dealer tried every cleaner and flush out there, then one Tech reached in through the toilet and felt the sensors, he fixed the problem. the epoxy glue the put the tanks together with dripped on and ran down two sensors, after scraping it off, no more problem.

[BFlinn181]

Originally Posted by kekker

I had problem with tank sensors always reading high with only a gal. water in it.
dealer tried every cleaner and flush out there, then one Tech reached in through the toilet and felt the sensors, he fixed the problem. the epoxy glue the put the tanks together with dripped on and ran down two sensors, after scraping it off, no more problem.

That tech isn't paid enough.

[GLE2]

Thanks everybody for your responses. Can and how do I forward these responses to a new iRV2 forum member?

[GaryWT]

The Bullet line generally uses the same panel for all their trailers so they show 2 gray even when you have one. The second will never change if you have just one. After a few trips you will not need the sensors as you will learn to read the signs or the timing. We open the gray when we arrive and close it the night before we leave so we have water to flush the hose. I hate taking a shower when the tank is suddenly full. If you have 2 gray tanks you will generally either need to move the sewer hose to dump it or have a second hose and use a Y to connect them. Good luck. Any member of the site can see this.

[RVGuy1966]

to answer, I keep the galley or kitchen grey tank closed until it fills up as I leave the shower grey tank open. this keeps the shower open to take multiple showers and when I dump my black the galley tank always has enough to complete the hose rinse.