Knowing the factors needed for optimal maintenance before using a SaluSpa is essential when it comes time to enjoy your hot tub. SaluSpa tub models range from every 177–290 gallons. SaluSpa tub filling time is planned based on the chemicals that will be used during the treatment process and the water heating costs. Water measurement for the SaluSpa will be detailed along with every inflatable tub dimension and measurement used for volume.
Capacity of Water for Each SaluSpa Spa Model
Each model SaluSpa made will have different water requirements for volume and design.
| SaluSpa Water Model | Capacity | User Number | Spa Size |
| Miami | 177 gallons | 2–4 | 71 inch diameter |
| Paris | 250 gallons | 4–6 | 77 inch diameter |
| Helsinki | 242 gallons | 5–7 | 77 inch diameter |
| St. Moritz | 290 gallons | 5–7 | 77 inch diameter |
Average inflatable hot tub weighs 200–280 gallons depending on the size. Extra time and cost is needed for running more chemicals to a larger spa with a higher capacity for heating. Hot tubs with 2 users will average a flow rate of 150–200 gallons, and a 4–6 user will flow around 280 gallons.
Determining the total volume of your tub is important for activities such as balancing the chemicals in the water and determining how energy efficient your tub is.
How to Measure Your Hot Tub?
Measuring your SaluSpa water capacity gallons accurately ensures proper filling:
Check the Manual
Each tub has different specifications. Check your user manual for the specs of your tub.
Fill Markers
Most tubs have a built-in max fill marker.
Fill and Calculate
If your tub is circular and has a diameter, you can calculate the volume of water in the tub using the following formula:
diameter(d) × diameter(d) × depth(h) × 5.9
Time the Fill
If you want to be accurate in how much water you fill, use a water meter for the fill.
Subtract Fill Markers
You want to subtract about 15–20 gallons for every guest you are estimating for. The water displacement will be the volume of the guest and the additional water the guest will push in.
Your tub will be at max water capacity with around 2–3 inches of the rim exposed. Overfilling is an easy mistake to make, as is underfilling, but both are equally as important to avoid.
Read More: SaluSpa Water Care: Chemicals Guide for Clean Safe Water
SaluSpa Inflatable Dimensions and Water Volume
SaluSpa gallons water is required based on how full the spa will be and the physical dimensions:
Effect on Volume:
- Diameter: The larger the diameter, the larger the water volume increase.
- Depth: When the spa is fully inflated, the depth is usually 26–29 inches.
- Wall Thickness: The thick walls decrease the overall internal volume by around 10–15%.
- Displacement from Built-in Seats: The seats decrease the overall volume by 20–30 gallons.
| Size Category | Gallons | Ideal Users | Setup Space |
| Small | 150–200 | 2–3 people | 6′ × 6′ |
| Medium | 200–260 | 4–5 people | 7′ × 7′ |
| Large | 260–300 | 6–7 people | 8′ × 8′ |
The volume of water that fits inside a SaluSpa is also based on the water demand of the outdoor inflatable tub during winter and summer. It is best to water level the tub higher during the winter, as it is important to maintain a level that allows for good jet stream adjustment and performance.
SaluSpa Filling Instructions
Proper filling ensures longevity and performance:
Step-by-Step Filling Process:
- Position spa on level ground before filling
- Fully inflate spa
- Fill with clean water
- Fill to maximum line (typically 80% of total depth)
- Stop 2–3 inches below the top
- Check for leaks
- Water must be 80–104 degrees
What Is the Water Limit For SaluSpa Hot Tub?
Do not go higher than the maximum fill line located on the spa walls. If too much water is added, there will be a mess to clean when the users get in and the sides will be strained and potentially damaged. It takes medium hot tub capacity models around 4–6 hours to heat water that is added at even lower than 80 degrees, and to heat water that is already at 80 degrees is a higher cost.
Can You Overfill a SaluSpa Hot Tub?
Overfilling creates several problems:
- Spillage Issues: Water will spill over when the users get in.
- Structural Stress: Damage will be done to the walls of the spa.
- Chemical Imbalance: There will be a lower concentration of chemicals in the water.
- Heater Inefficiency: More money will be spent to heat the water due to the added time needed for heating.
- Pump Strain: More work will be created for the filter.
| Overfill Amount | Consequences | Solution |
| 1–2 inches | Minor spillage | Remove 10–15 gallons |
| 3–4 inches | Structural stress | Drain to proper level |
| 5+ inches | System damage risk | Complete refill needed |
The hot tub must maintain the ability to properly circulate the water. Large hot tub capacity models can lose more water than small hot tub capacity models, but all models must be careful and stick to the fill line guidelines.
Helpful Tips For Measuring Water for Your Spa
Accurate measurement ensures optimal performance:
Understanding Measurement
- When taking measurements, it is essential to be as accurate as possible.
- During initial filling, use a water meter to measure the water as it is filling into the spa.
- For future reference, make a mark on your hose at every 100-gallon interval.
- To calculate, use the formula: depth × 3.14 × radius² × 7.48
- Factoring in water displacement, typically 1 bather = 8–10 gallons
- Factoring in evaporation, typically 2–3 gallons per week
- If upkeep is settled, it is ultimately the discretion of the user to measure.
Please be advised: the number of gallons that a hot tub holds impacts chemical dosages, the energy consumed, and the frequency at which the hot tub needs to be refilled. Most SaluSpas average at 300 gallons, so it is important to understand the size of the hot tub.
FAQs
Here are some frequently asked question given Below:
How Often do I Have to Refill a SaluSpa?
It mainly depends on how frequently you use the hot tub and how well you keep the water in control, but normally it is every 2–3 months.
Does it Take Longer to Heat a Full Hot Tub?
Yes, a 30–50% increase of water will take more time to heat.
Is It Okay to Use Well Water in a SaluSpa?
You can use well water, but make sure to monitor it for minerals to avoid water damage to your hot tub.
What is the Cost to Fill a SaluSpa?
The average cost is $1–3, mainly dependent on your local water costs and the size of the hot tub.
Should I Drain Completely For Winter Storage?
Step one is to drain all the water, dry the surface, and as best as you can, deflate. Then, you can store the hot tub indoors.
Conclusion
Knowing how many gallons does a SaluSpa hold is key to keeping it in the best condition, maintaining the right water chemistry, and having a great time in it. Depending on the model, SaluSpa water capacity gallons when full can reach as high as 290 gallons or as low as 177 gallons. Ensuring you follow the SaluSpa filling instructions as best as you can, and maintaining the right water line for inflatable SaluSpa (to prevent overfilling) will prolong the hot tub’s life span.
Lastly, always keep in mind that the inflatable hot tub gallons capacity will determine how high the heating costs will be, how many chemicals will be used, and how the experience will be for the entire group of users. Start measuring your SaluSpa water holding capacity today for better hot tub management and enjoyment.
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