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The Services You Need to Get the Most Out of Your Pool or Hot Tub

Our Services

To have a safe, enjoyable swimming experience in your pool or spa, it is important to properly take care of it. At Water City Pool & Spa LLC, we make it easy. Located in Oshkosh, WI, our team of experts provides a wide range of installation, maintenance, and repair services to help our customers get the most out of their pools and hot tubs.

Our services include:

  • Pool Openings
  • Pool Closings
  • Above & Inground Pool Installation
  • Liner Replacement
  • Hot Tub/Spa Services
  • Water Testing
  • General Pool Service
  • And more!


Water Balancing

It’s essential that you maintain a proper water balance in your pool or hot tub at all times. Water balance is key in preventing water-borne illnesses and extending the lifespan of your pool and hot tub equipment.

When balancing water, do so in the following order:

  1. Total Alkalinity
  2. pH
  3. Total Hardness
  4. Sanitizer

Total Alkalinity

Total alkalinity impacts your water pH’s resistance to change. Generally, the number should be 125-150 ppm on most systems. A number lower than that means your pH level is very susceptible to change. A number too high will mean that it will be more difficult to adjust the pH level of the water.


pH is the measure of your pool or spa water’s acidity or basicity. The best pH for a pool or spa is 7.5, but any number between 7.2 and 7.8 should still be okay. When the pH of the water becomes too acidic, sanitizers become less effective at neutralizing bacteria. If the pH becomes too basic, calcium can build up and potentially ruin your pool/spa and equipment.

Total Hardness

Hardness is defined by the amount of dissolved calcium and magnesium in the water. If your pool or spa water has too little calcium, the water will become corrosive. If it has too much calcium, it can create calcium buildup. Both of these instances can significantly shorten the lifespan of your pool/spa and equipment, so it is important to maintain proper calcium levels.


Most pools and spa use chlorine and bromine to sanitize the water from sweat, soaps and shampoos, body oils, dead skin, and other pollutants left behind by our bodies. Having the proper amount of sanitizer prevents your water from becoming green and helps protect swimmers from health issues.

Water Testing

Our team offers FREE water testing services, using state-of-the-art equipment to measure the alkalinity, pH, hardness, and sanitizer levels in your pool or spa. We use the ALEX computerized water analysis spin lab, which produces instant results for you to see. All you have to do is bring in a water sample from your pool or spa, and our experts will provide you with instructions on the right products to use and how to use them if adjustments need to be made. We recommend testing your water at least every two weeks so any issues can be detected as soon as possible. We want you and your family to always have a safe swimming experience!

Bioguard Tru Blue Promise in Oshkosh, WI

Liner Replacement

Vinyl liners in your pool need to be replaced when they develop rips, tears, or dry rot. Our team offers high-quality replacements and is able to efficiently remove your old liner and install a new one in typically just one to two days. That means you can get back to enjoying your pool and making the most of your summer!

Hot Tub/Spa Service

We provide a wide range of hot tub and spa services, including installations, repairs, maintenance, water testing, and more. Let us help you keep your hot tub and spa in top condition year-round!

For more information about our services, or to schedule a free home consultation or estimate, contact us today at 920-479-6506.


Water City Pool & Spa LLC
1951 S Washburn St
Oshkosh, WI 54904



Monday – Friday
9:00 AM – 6:00 PM

9:00 AM – 3:00 PM