Pool care articles
What a spa and hot tub service visit covers
A visit from Sullivan's Pool Service covers spa water testing and balancing, filter cartridge care, a drain, clean and refill when appropriate, and checks on jet, blower, heater and circulation-pump faults, along with attached-spa valve and actuator problems. Cover condition is checked. Sullivan's services attached spas and standalone hot tubs, including shared pool equipment setups. Tell us whether the spa shares equipment with a pool and provide its make and model.
Who we service and what we ask first
Sullivan's works on attached spas and standalone hot tubs, and a visit can cover water testing, care of the cartridge filter, and faults in the equipment itself.
Before we come out, it helps to know two things. First, whether the spa runs on its own equipment or shares equipment with a swimming pool, since that changes how we approach the setup. Second, the make and model of the spa, which lets us arrive prepared to work on what you actually have.
One thing we do not rely on is the size of your pool or the age of your house. Neither tells us anything useful about how a spa should be maintained, because a spa's needs come from its own water and its own equipment, not from the property around it. If you are unsure whether your spa shares equipment with the pool, we can work through that with you when you call.
What the visit includes
A spa service visit starts with the water. We test it and adjust the chemistry so the reading falls back into a balanced range, which keeps the tub comfortable to sit in and easier on its surfaces and equipment. When the water condition calls for it, the better step is to drain the tub, clean it out, and refill it fresh rather than keep correcting the same water.
The filter cartridge gets attention too. We clean it, and if it has reached the point where cleaning no longer helps, we replace it following the instructions for the model installed in your tub.
The rest of the visit covers how the spa runs. That includes jet, blower, heater and circulation-pump faults, and for a spa attached to a pool, valve and actuator problems such as spillover and switchover issues. Before we finish, the cover is checked over for condition.
How often the water needs attention
Hot tub water needs steady attention, and public health guidance reflects that. The CDC advises a pH between 7.0 and 7.8, and a chlorine level of at least 3 ppm, for hot tubs. Where bromine is the sanitizer instead, the same guidance points to a range of 4 to 8 ppm. Testing is recommended at least twice a day, and more often when the tub sees heavy use, because sanitizers can drift out of range quickly in warm, circulated water.
Beyond day to day chemistry, the water itself has a lifespan. The tub manufacturer's schedule for draining and replacing water is the starting point, and the water's condition and how much the tub gets used both factor into when a change is due. A generic gallons per bather formula can suggest a ballpark, but it is not a one size fits all instruction for a household tub.
Symptoms to report before a repair
Spas and hot tubs show trouble in different ways, and each sign points to its own set of checks. Cloudiness, foam, weak jets, a strong chemical smell, and a heating fault are separate problems. Because they differ, the service visit goes differently depending on what you describe.
A smell or the way the water looks cannot tell anyone which chemical is needed or what repair to make. That is why your description matters less than the records you can share. Before the visit, write down the water readings, the model information, and any fault code or message the display shows. Those details give the visit a starting point.
If something on the panel is flashing or the water has changed overnight, note when you first saw it. A complete picture at the start saves time later.
Water temperature and when to stop
Spas heat water in a smaller volume than a pool, so the temperature climbs quickly and stays where you set it. There is a ceiling to keep in mind: keep the water at or below 104°F, and never set it above that mark. If your control reads high or the water feels hotter than the display suggests, that is worth mentioning at your next visit.
It is also easy to fall into a cycle of pouring in more chemicals when the water keeps looking or smelling off. That rarely solves the underlying issue, and it can make the real cause harder to find. Repeated problems call for an assessment rather than another dose.
And if your spa shares equipment with a pool, draining it is not a step to take casually. Sullivan's Pool Service offers spa water care and equipment assessment, which covers both the water and the equipment behind it. Persistent water problems need assessment, not guesswork.
Sources
In Austin
Fill water matters here. Austin Water reported finished water leaving its three plants in the second quarter of 2026 at pH 9.65 to 9.74, total hardness of 76 to 77 mg/L as CaCO3, total alkalinity of 51 to 60 mg/L, and 2.52 to 2.69 mg/L of chloramines. Those are averages for tap water, not readings of your pool, so test the pool itself after a top-up.
Related articles
- Hot tub water care versus pool care
- Why hot tub jets burn through chlorine
- Why is my hot tub cloudy, foamy or not heating?
Sullivan’s Pool Service maintains pools in and around Austin, including Northwest Hills, South Austin, West Lake Hills, Tarrytown, Great Hills, River Place, Crestview, East Austin, North Austin, West Campus, Hyde Park, Downtown Austin and St. Johns, and in Bee Cave, Cedar Park, Georgetown, Leander, Pflugerville and Round Rock. See every service area.
Weekly residential service has one fixed monthly price, set by pool size: see pool service pricing for what each size tier covers.
Tell us about your pool
Tell us your service location and whether you need weekly care, help with equipment, or a one-time service. Call or send the quote form. We’ll confirm availability and the next step for your pool. Repairs and other separately quoted work are discussed before approval.