Water under the tub or behind it while the door stays dry almost always comes from one of a handful of connections: a union at the pump or heater, the hand shower receptacle on a tub where the sprayer was mounted to the wall without the barrel extension, the gasket under a push button, the drain elbow, a supply line, or the base of the faucet. The way to find it is to dry everything, then add one source at a time. This article gives you the source map, a simple isolation routine, what a tripping GFCI on a dry floor really means, and what to photograph for your ticket.

Where Water Usually Comes from

• Unions at the pump or heater. A union that leaks after tightening usually has an over-tightened or displaced O-ring. Take it apart, re-seat the O-ring and reassemble. At the heater, confirm the heater threads match the pipe threads. A leak between the seams of the pump housing itself is a pump part question; send a photo with your serial number.
• The hand shower receptacle. If the pull-out hand shower was attached to the wall without the extension hose and stainless barrel, water runs down the hose into the deck insert hole and behind the tub. The Leak Elimination Kit plugs that hole: unscrew the sprayer from the hose, screw the barrel onto the hose end, attach the extension hose to the other side of the barrel, seat the barrel in the shower base, and screw the sprayer onto the extension. No service visit needed. More detail is in hand shower problems and the wall-mount leak kit.
• Push button gaskets and air tube fittings. Each chrome button passes through the shell with a rubber gasket, and water can follow the button into the cavity below. A thin bead of silicone around the gasket stops it. A drip where an air tube meets the underside of the tub is the same fix at the fitting's gasket.
• The drain elbow. An elbow that was over-tightened during installation can crack or weep. A replacement elbow is a simple part to swap; see leak at the drain elbow or drain pipe.
• Supply lines and faucet base. Check the braided supply lines along their full loop and the connections under each faucet piece with the diverters turned on, since some fittings only see pressure in certain positions. A slow drip at a braided line loop usually means the line should be replaced rather than tightened further.
• The drain during draining. If water appears only while the tub drains, look first at the drain fittings and elbow. The installer checklist includes checking the drain fittings while draining for exactly this reason. One owner traced a corner leak to the rubber gasket at the 2 inch drain connection installed upside down.

Isolate the Source

1. Open the access panel, dry every surface under the tub with towels, and lay dry paper towels under the drain, the pumps and the faucet connections.
2. Fill the tub with the pumps off and wait. Water now points to the faucet base, supply lines, drain stoppers or door.
3. Run the hydro pump alone for several minutes, then check the unions and the heater.
4. Run the air pump alone and check its connections.
5. Use the hand shower with the sprayer pulled out and the diverter switched, and check the receptacle hole in the deck.
6. Drain the tub and watch the drain elbow and fittings while the water is moving.

Whichever paper towel gets wet first tells you where to look. Take a photo at each step. If the water is at the door rather than under the tub, start with water at the door: what to check first instead, since leveling and the seal are the usual causes there.

A GFCI That Trips with a Dry Floor

If the GFCI trips and there is no water underneath the tub, the GFCI device itself is the likely culprit. Two related points come up often. First, every Ella's Bubbles tub requires a dedicated 20 amp GFCI-protected circuit; a 15 amp circuit is too small (the Flow is the one model specified at 15 amps). Second, the tub switching its functions off after 20 minutes is the built-in timer working as designed, not a trip, and everything can be turned right back on. If a GFCI fails its own test button, treat it as a shock hazard, switch the power off and have an electrician correct it before using the tub. Circuit sizing by therapy package is covered in Breaker or GFCI Keeps Tripping.

Sealing a Push Button

The video shows the button leak fix. Carefully remove the button collar with a flat edge, taking care not to scratch the tub surface, and lift out the collar and the button. Place a thin bead of silicone caulk around the rubber gasket and smooth it so the coverage is complete. Replace the button, snap the collar back on, smooth off any excess, and clean the area with denatured alcohol if needed.

Wall-Mounting the Hand Shower Without a Leak

This video installs the wall-mounted sliding bar and shows why the extension matters. After marking and drilling for the lower bracket, inserting the anchor and tightening the short screw, the chrome cover slides over the bracket and the column sits in it. The shower head holder and the upper bracket go onto the column before the upper bracket is secured with the longer screw through the hole in the column. The shower head is removed, the coupler is attached and tightened, and the extension line is hand-tightened with the excess fed into the receptacle. The coupler creates a waterproof seal at the receptacle, with the rubber washer doing the sealing. The video then demonstrates the leak hazard: overextending the handheld shower without the extension and coupler lets water run into the deck. The head is reattached and placed in the height-adjustable, pivoting holder.

What to Send with Your Ticket

• Clear photos of the wet area and the fitting you suspect, with the access panel removed.
• A short video of the leak while it is happening, especially for the drain and the hand shower.
• Your model and serial number, from the inside of a removable panel, and where you purchased the tub.
• Whether the leak is always in the same spot and whether the door is left open when the tub is not in use.

Photos and a description are required for any part supplied under the warranty, so gathering them first saves a round trip. Water damage to the home itself is not covered, so stop using the tub until the leak is found.

Common Questions

For anything specific to your model or serial number, open a ticket at ellasbubbles.com/support or call (800) 480-6850. The team is glad to help.