MagicSpa Quick Installation & Operation Guide

Everything you need to get your MagicSpa running instantly.

⚠️ Vital Safety Rule: Never plug the control box directly into a wall outlet. Always use the provided low-voltage power adapter plugged into a GFCI-protected outlet.

Quick Start in 3 Steps

1. Add Salt

If you know your current salt level, use the salt calculator first to fine-tune the dose. Otherwise, add 2.5 cups of Pool Salt per 100 gallons (380L) of water. Turn on jets to dissolve, then test before adding more. Wait until water is 95°F (35°C).

2. Drop in Water

Drape the electrode over the side, hanging vertically in the deepest part of the spa. Plug adapter into a GFCI outlet.

3. Set Work Time

Press the “Menu” button to enter “Work Time Set”. Use the arrows to select hours (e.g., ‘5’ for 5 hours/day).

Salt Requirements & Water Chemistry

Use 99% pure Sodium Chloride (NaCl) pool salt without anti-caking agents. Operating salinity range is 500 – 2500 PPM (the start-up dose below lands near 1,800 PPM).

Estimated Salt per 100 Gallons (380 Liters)

Salt Type	Pounds	Kilograms	Cups	Target PPM
Sodium Chloride (NaCl)	1.5 lbs	0.7 kg	2.5 cups	≈1800 PPM (start)

Ideal Water Chemistry Parameters

Parameter	Recommended Level
Free Chlorine	3 – 5 PPM
pH	7.2 – 7.6
Total Alkalinity	80 – 120 PPM
Total Hardness	150 – 250 PPM

Tip: Always start with less salt than you think you need. It is much easier to add salt than to drain water to remove it!

Hardware Setup Details

Control Box & Electrode Placement

• Control Box: Mount vertically on the spa skirt, out of direct sunlight and rain.
• Electrode: Place in the deepest location. Keep it in a vertical orientation so chlorine bubbles travel up efficiently. Do not trap it in the filter area.

(Optional) In-Line Installation

For hidden setup, connect to the continuous (24-hour) circulating pump bypass. Do not install in the main high-pressure flow.

Operation & Settings

Understanding the Status Lights

When generating chlorine, the LED lights indicate your salt levels instantly:

• Solid Green — Salt OK
• Solid Blue — Salt Low
• Solid Red — Salt High

*If flashing Red, system shut down due to excess salt. Drain some water and refill to dilute.

Setting the Work Time (All Parameters Listed)

The system runs automatically every 24 hours. The setting determines how many hours it works per cycle. Here is the complete work time configuration table:

Work Time (Hours)	Spa Size (Gallons)	Spa Size (Liters)
OFF (always closed)	0	0
1 – 2 hours	< 200 gal	< 760 L
3 – 4 hours	200 – 300 gal	760 – 1150 L
5 – 6 hours	300 – 400 gal	1150 – 1500 L
7 – 8 hours	400 – 600 gal	1500 – 2300 L
9 – 11 hours	600 – 800 gal	2300 – 3000 L
12 – 15 hours	800 – 1000 gal	3000 – 3800 L
16 – 23 hours	> 1000 gal	> 3800 L
ON (always on)	> 2000 gal	> 7500 L

Boost Mode

If you have a party or heavy usage, press and hold the BOOST button on the working screen to force continuous generation for 24 hours.

Quick Troubleshooting

🔴 Red Light Flashing + Beeping

Cause: Salt level is too high.

Fix: Do the “Bucket Test”: Mix 2/3 spa water and 1/3 fresh water in a bucket. Test the electrode inside. If it turns Green, drain and refill your spa proportionally.

⚪ White Crust on Electrode

Cause: Calcium buildup from hard water.

Fix: Unplug the device. Soak the electrode in mild acid (like white vinegar) for 10-30 minutes, then rinse.

🧪 Chlorine is Too Low

Cause: Work time is too short.

Fix: Increase the “Work Time” by 1-2 hours in the menu. Check levels again tomorrow.

Need Help? Contact Zelinhol Support

support@zelinhol.net | zelinhol.net

Related guides

• Hot Tub Salt Calculator — work out how much salt your tub needs after a fill or top-off
• Salt System Troubleshooting — symptom-based checks for low chlorine, scale, and odd readings
• Salt Water Care Guide — the weekly and monthly routine for salt water hot tubs