Ella's Bubbles Walk In Tub Blog

Support Center / Maintenance & Cleaning / Common Maintenance Questions: Flush Frequency, Bleach, Hair Catchers, Chrome Spots, Humming and an Unused Tub

Common Maintenance Questions: Flush Frequency, Bleach, Hair Catchers, Chrome Spots, Humming and an Unused Tub

Updated September 2026

Most everyday walk-in tub maintenance questions have short, reassuring answers. The vinegar flush is done once a month and once before the first bath, always with the same recipe. Bleach and abrasive cleaners stay off the acrylic. Ella's Bubbles does not make a hair catcher, but a common silicone drain protector fits. Spots on chrome usually trace back to Epsom salt or bath salts. A light hum with nothing switched on is the ozone system, and a two-minute burst of air after a bath is the auto-purge doing its job. This article gathers those answers in one place; the full monthly routine and the approved cleaner list live in their own articles.

How Often to Run the Vinegar Flush

There is one recipe, and it is used both before the first bath and once a month afterward:

  1. Mix 2 cups of white vinegar with 2 cups of water (a 1:1 mix).
  2. Fill the tub with water to one inch above the highest jets.
  3. Add the vinegar and water mixture.
  4. Run the tub for 10 minutes, then drain.

Because the air and hydro systems are fully plumbed, flushing after every bath is not necessary. The monthly flush is the same as the first-use flush, and it pairs with a quick clean of the pump inlet cover: clear any hair, then wipe it with a non-abrasive towel and an approved cleaner. This recipe is the current published instruction for every Ella walk-in tub, and it is the one to follow even if you have seen slightly different figures in older material.

This overview video walks through the tub's built-in hygiene features and the owner's routine: ozone sterilization runs whenever the hydro jets are on, auto-purge clears the air lines after the air massage is shut off, the tub surface is wiped down with a non-abrasive cleaner about twice a month, the intake screen is kept clear of debris, bath bombs are avoided, and the tub is flushed with white vinegar monthly. For the flush itself, use the published recipe above: 2 cups of white vinegar with 2 cups of water, filled one inch above the highest jets and run for 10 minutes.

This short video shows the initial cleanout after installation: fill the tub to about one inch above the highest jets, add white vinegar, run the jets, and drain fully before the first bath. The steps and the purpose are the same as the monthly flush; use the published 2 cups of vinegar with 2 cups of water and the 10-minute run time.

Bleach and Abrasives

Bleach is not part of Ella's Bubbles published cleaning instructions and does not appear on the approved cleaner list, so we do not recommend it on the acrylic; the support team has confirmed that bleach can damage acrylic over time. Abrasive cleaners, scouring powders and gritty pads are never recommended because they damage the surface. Stick to the approved products (Dawn dish detergent, the listed tub and tile cleaners, and the vinegar and water mix) and a soft cloth or sponge. If you have a persistent odor or debris that the monthly flush does not clear after a repeat, see the black flakes and slime article and open a support ticket with photos rather than reaching for a stronger chemical.

Hair Catchers

A hair catcher is not an Ella part, so there is nothing to request through your Ella dealer for this. The support team has confirmed that the OXO silicone pop-up drain protector fits over Ella's drains, and it is a simple way to keep hair out of the drain and off the pump inlet cover. Whatever protector you choose, it should sit loosely over the drain and lift away easily so the drain can still open and close fully. The drain plugs and hair catchers article has more on the drain hardware itself.

Overhead view of an Ella walk-in tub 2 inch drain with emergency pull chain beside the hydro jets
A loose-fitting silicone protector over the 2 inch drain keeps hair out of the lines.

Why Chrome Spots

Epsom salt can be used in an Ella tub and will not harm the jetting system, but the published FAQ notes it may affect the chrome finish, most often as discoloration or spotting. The practical habits that prevent it: dissolve the salts fully before they reach the jets, drain the tub as soon as the soak is over, rinse the tub, and wipe the chrome trim, jets and faucet dry. Keeping salt water from drying on the chrome is what prevents the spots. Our bath additives article has the full rules for salts, oils and bath bombs.

Humming and a Burst of Air

A light humming noise when nothing seems to be on is the ozone sterilization system running by itself, which is normal. Ozone starts and stops with the hydro pump and is part of the tub's built-in hygiene. A burst of air from the jets after your bath is the auto-purge on the air massage system. About 20 minutes after you turn the air pump off, it starts automatically, runs for 120 seconds to blow residual water out of the air lines, and cannot be interrupted. It is normal even if it starts while you are still in the tub; if you want to get out while it runs, just drain and exit as usual.

Ella walk-in tub interior during the auto-purge cycle with air flushing through the jets
Auto-purge blows leftover water out of the air lines about 20 minutes after the air massage is switched off.

A Tub That Will Sit Unused

Ella's Bubbles does not publish a seasonal shutdown or winterizing procedure for walk-in tubs, so we would rather not guess on your behalf. A few published habits still apply while a tub sits idle: leave the door open so the seal is not compressed, and run the standard vinegar flush before the first bath when you return, exactly as you would before first use. A tub that has sat for a while can take a second flush to run clear, which is normal. If the home will go unheated, or the tub will be idle for many months, open a ticket at ellasbubbles.com/support with your model and the situation and the team will advise on the right steps.

Common Questions

How often should I run the vinegar flush?
Run the flush once before the first bath and once a month after that, using the same recipe each time. Mix 2 cups of white vinegar with 2 cups of water, fill the tub to one inch above the highest jets, add the mixture, run the tub for 10 minutes and then drain. Because the air and hydro systems are fully plumbed, flushing after every bath is not necessary; the monthly flush, paired with a quick clean of the pump inlet cover, is all the routine asks for.
Is bleach ever OK?
We do not recommend bleach on the acrylic. It is not part of the published cleaning instructions, it does not appear on the approved cleaner list, and the support team has confirmed that bleach can damage acrylic over time. For everyday cleaning, stay with the approved products such as Dawn dish detergent and the listed tub and tile cleaners, and rely on the monthly vinegar flush to keep the lines clear. If a persistent odor or debris does not clear after repeating the flush, open a ticket with photos rather than reaching for a stronger chemical.
Can I use cleaning vinegar instead of white vinegar?
The published instruction calls for plain white vinegar mixed 1:1 with water, and that is the recipe every Ella walk-in tub uses. Ella's Bubbles has not published guidance on the stronger cleaning vinegar sold for household use, so we cannot confirm it is safe for the acrylic or the plumbed systems. Please stay with white vinegar, or open a ticket at ellasbubbles.com/support before substituting and the team will advise.
Do you sell a hair catcher?
No. A hair catcher is not an Ella part and none is built into the drain, so there is nothing to request through your Ella dealer for this. The support team has confirmed that the OXO silicone pop-up drain protector fits over Ella's drains, and it is a simple way to keep hair out of the lines and off the pump inlet cover. Whatever protector you choose should sit loosely over the drain and lift away easily so the drain can still open and close fully.
Why is my chrome spotting?
Spots on the chrome most often trace back to Epsom salt or other bath salts drying on the finish. Epsom salt will not harm the jetting system, but the published FAQ notes it may affect the chrome, usually as discoloration or spotting. The habits that prevent it are simple: dissolve the salts fully before they reach the jets, drain the tub as soon as the soak is over, rinse, and wipe the chrome trim, jets and faucet dry so salt water never dries on the metal.
Why does the tub hum when nothing is on?
A light hum with nothing switched on is the ozone sterilization system running by itself, which is normal and part of the tub's built-in hygiene. Ozone starts and stops with the hydro pump, so you may hear it come and go on its own. A burst of air from the jets about 20 minutes after you turn the air pump off is the auto-purge, which runs for 120 seconds to blow residual water out of the air lines and cannot be interrupted; it is normal even if it starts while you are still in the tub.
Is a Magic Eraser or Wet and Forget safe on the tub?
Neither product appears on the published approved cleaner list, so we do not recommend either one on the tub. Melamine sponges such as a Magic Eraser are mildly abrasive, and abrasive cleaners and pads are never recommended because they damage the acrylic surface. Stay with Dawn dish detergent, the listed tub and tile cleaners, or the vinegar and water mix, applied with a soft cloth or sponge.
Should I wipe the tub after each bath?
It is a good habit, though not a strict requirement. The published routine calls for wiping the surface with a non-abrasive cleaner about twice a month, and a quick rinse and wipe with a soft cloth after each bath keeps soap film and mineral spotting from building up between those wipe-downs. That small step matters most in hard-water areas, and it also keeps salt residue from drying on the chrome trim.
How do I get caulk or sticker glue off the acrylic?
Stubborn marks and adhesive residue can be removed with denatured alcohol on a soft cloth, which is the method in the published cleaning instructions. Test a small, inconspicuous spot first, work gently, and never scrape the acrylic with anything metal or abrasive. If a mark will not lift, open a ticket at ellasbubbles.com/support with a photo and the team will advise before you try anything stronger.

For anything specific to your model, serial number or water conditions, open a ticket at ellasbubbles.com/support or call (800) 480-6850 and the team will be glad to help.

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