Overfilling fresh water tank..word to wise

CanadianTabber

Hi all!
When we do extended camping at one site, I will usually fill the fresh water tank completely full. Recently we did just that and found that our grey tank started to overfill (read came up shower pan)
Looking at the 2021 Tab 320 specs, I noticed that the fresh water tank is 19 gallons and the grey tank only 18 gallons.
Next time I will not fill the fresh tank to the brim!
Anyone else experience this?

manyman297

We’ve had this happen as well. Luckily we noticed as the sink wouldn’t drain. We had to dump some gray before we left camp.

ScottG

My 2015 320 has an 11 gallon fresh water tank and a 19 gallon grey tank. I typically start with a full tank and add fresh water every couple of days, trying to keep track of how much I put in so I have a rough idea of how much is ending up in the grey tank. I don't have tank sensors so the stink water bubbling up through the shower drain is my only indicator that the grey tank is full!  :-O