How to Hook Up a Utility Sink


A utility sink makes a helpful addition for any laundry or garage space. These sinks feature extra large basins made of plastic, so that you can soak many objects inside---such as laundry or engine parts---without having to worry about damaging the sink itself. Utility sinks also come with legs, so that you don't need a pre-existing cabinet or countertop to place them on. Hooking up a utility sink is not much different from hooking up a kitchen or bathroom sink and can be finished over the course of an afternoon.

Things You'll Need

  • Screwdriver
  • Silicone caulk
  • Faucet
  • Plumber's tape
  • Pliers
  • Adjustable wrench
  • Water supply hoses
  • Drain
  • Tail piece
  • P-trap
  • Place the utility sink against the wall in the position where you will be installing it. Use the pencil to mark the wall. This will show you where to install the sink bracket. Attach the bracket in the proper position with either screws or drywall anchors, depending on the wall material. Hook the utility sink up to the bracket. Tighten the screws to anchor it in place.

  • Attach the faucet to the sink. Apply a thin bead of silicone caulk to the underside of the faucet and set it in the faucet recess on the utility sink. Thread the nuts on the underside of the faucet to hold it in place.

  • Connect the water supply. Wrap the inlets on the faucets with plumber's tape. Connect the hoses from the hot and cold water supply. Tighten them hand tight at the faucet inlet, then do an additional turn with a pair of pliers.

  • Connect the drain plumbing. Apply silicone caulk to the underside of the drain flange. Set this in the drain recess at the bottom of the sink. Allow it to set for a few minutes. Attach the tail piece underneath the sink by screwing it into the bottom of the drain flange. Secure in place with a rubber washer and jamb nut.

  • Connect the utility sink to the household sewer system. Wrap the threads of the tail piece you connected in Step 4 with plumber's tape. Also wrap the threads of the sewer inlet pipe. Insert the P-trap into place between the sewer inlet and tail piece. Tighten the couplings hand tight, then do an additional turn with the wrench.

  • Turn on the water supply. Run the faucet and check for leaks. Tighten any couplings, if necessary.

Tips & Warnings

  • Don't wipe away excess silicone caulk while it's still wet. You'll just make a mess. Instead, wait for it to dry and then cut it away with a utility knife.
  • If in doubt about any of the steps above, consult a professional.

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  • Photo Credit just a sink image by Pix by Marti from
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