Rene T
Site Team
I little background first.
We've been living full time in our RV since the end of October. I have 3 tanks. 1 black and 2 gray. They have tank level indicators which read Empty, 1/3, 2/3 and full. For the past month, all the tanks read 2/3 even when they're empty. What else is new. The full light does go on when it's time to dump.
I contacted Roebic and spoke to a manager in the R & D department. I explained my situation and she said to dump 16 OZ of K-57 in the tanks and let them sit as long as possible. I did it to the galley tank because that's the one which fills the slowest. I filled and dumped the tank a couple of times before adding the K-57. The last time I filled it to the point where the full light lit. I then added the Roebic. I was able to let it sit for 72 hours before I had to dump it. The results was that when empty, the 1/3 light is lit. Better than before so the K-57 did work. I wish I could have let it sit a few more days.
We are going on a 10 day cruise the end of January and I'm going to do the same thing to all the tanks and they'll be able to sit for 10 days. I'll let you know what happens when we come home and dump all the tanks.
She also said that K-57 would be better in my case and not K-67. K-67 would be for a plugged line or trap. She also said that Roebic has chemicals for black tank and gray tanks. 2 different chemicals. I don't know if I want to be tied to having to use chemicals. I haven't for the last 20 years and don't want to start now. I'll have to think about that.
I purchased the Roebic K-57 at a Tractor Supply store.
We've been living full time in our RV since the end of October. I have 3 tanks. 1 black and 2 gray. They have tank level indicators which read Empty, 1/3, 2/3 and full. For the past month, all the tanks read 2/3 even when they're empty. What else is new. The full light does go on when it's time to dump.
I contacted Roebic and spoke to a manager in the R & D department. I explained my situation and she said to dump 16 OZ of K-57 in the tanks and let them sit as long as possible. I did it to the galley tank because that's the one which fills the slowest. I filled and dumped the tank a couple of times before adding the K-57. The last time I filled it to the point where the full light lit. I then added the Roebic. I was able to let it sit for 72 hours before I had to dump it. The results was that when empty, the 1/3 light is lit. Better than before so the K-57 did work. I wish I could have let it sit a few more days.
We are going on a 10 day cruise the end of January and I'm going to do the same thing to all the tanks and they'll be able to sit for 10 days. I'll let you know what happens when we come home and dump all the tanks.
She also said that K-57 would be better in my case and not K-67. K-67 would be for a plugged line or trap. She also said that Roebic has chemicals for black tank and gray tanks. 2 different chemicals. I don't know if I want to be tied to having to use chemicals. I haven't for the last 20 years and don't want to start now. I'll have to think about that.
I purchased the Roebic K-57 at a Tractor Supply store.