ReciRculating Studio Sink

Here are some general plans for the recirculating clay sink we built. It's great for rinsing pottery wheel splash pans or anything with a lot of clay on it, without worrying about clogging your plumbing.




Reservoir & Trap System

The drawing should be self-explanatory. The idea is that most of the clay will settle in the outer container. The 2-gallon bucket keeps the suction plate out of most of the clay, and then the 1-quart bucket keeps it above any sediment that makes it into the 2-gallon bucket. 

Test the fit of everything before you cut holes in the lid. 

Pump Mounting

Mount the board between the back legs of the sink (low enough that it will be below the lip on the 29-quart container). You will have to drill holes in the metal legs.

Mount the pump onto the board in the orientation shown in the picture. 

Cut the hose - one section will connect the pump inlet to the suction plate in the reservoir, the other section will connect the pump outlet to the faucet. Use the brass "hose menders" on the cut ends.

Sink Connections

Connect the outlet of the pump to one of the faucet inlets using the "hose mender" and the appropriate brass fitting (3/4" hose male to 1/2" FIP for us). Plug the other inlet with a cap (1/2").

In operation, the faucet handle with the cap always stays closed, and the one with the hose always stays open. Flow is controlled by turning the pump on and off with the switch.

Electrical Switch

Make sure to only use this on a grounded, GFCI outlet.

Cut the plug off the end of the pump power cable and the female end of the extension cord. Using the switch, outlet box, and cable strain relief, wire it up so that the switch controls power to the pump. Consult an electrician if you are unsure about any of this. Electricity and water can be dangerous!

Mount the outlet box to the side of the sink using small nuts and bolts (see the picture at the top of this page).