Water Storage Tanks for Trailer Rigs

Bruno, morning....  that tank is about 10 gallons... is that enough ????

About the set up....  I suggested to another member, get 2 tanks and 2 pumps... wire the pumps to come on at the same time... one supplies water to the sink and when it come on, the other pump starts and removes the grey water from a bucket under the sink to the grey water tank where ever you put it... that way the grey water tank can be elevated to any location... If using an "on demand pump" for the supply be sure the discharge pump has more capacity to thoroughly drain the bucket..... 

Just me thinking out loud.... dumping a bucket from under the sink can be messy and a pain and unsanitary in the eyes of the food inspectors... 

I would think about the grey water tank being larger so in the event you needed more potable water, you would have adequate storage for more grey water without having to dump...

Dave

Have you considered using a food grade 55 gal drum?  We can get them around here that are a plastic material, not steel, for about $ 15.

I just got a couple to use for a water system at a deer camp.  I think they were cooking oil.  Washed em out real good.

Price was right