Got a free 2007 Cal-Spa 5900. Just set it up yesterday. Water start up questions.


Well-known member
Jun 19, 2020
Los Angeles

I picked up hot tub last week. Its a 120v (can be both but I don't have 240 and the original owner didn't either so luckily i didnt have to do any re-wiring) and about 6x6.

I filled it up and tested it:
1. No Leaks.
2. All jets work. Both low and high pressure.
3. Light Works.
4. He gave me an extra brand new filter.
5. He gave me all kinds of spa maintenence chemicals. This is where it becomes overwhelming for a first time spa owner.
6. Heater does NOT work. So I ordered it online for $135. Hasn't arrived yet.

I joined this forum this week seeking help with my Above Ground pool algae issue. Working on that, emptying it out and gonna SLAM it.

In the mean time, I thought It take out the chemicals and list them in addition to adding images.

The spa is in very good shape and the cover is also in good shape. No rips and is lightweight.

I filled it up to test it, but going to have to drain it to replace the heater because it doesnt have those "shut offs" that allow you to change the heater without draining it (saw some you tube videos about it and unfortunately i dont have those).

Would you guys mind helping me with the start up? I can start a new thread later on asking for help maintaining it to avoid overcomplicating things.

Chemicals that it came with:
2 Cal Spas: Stain & Scale Defense
2 Cal Spas: Spa Bright
2 Cal Spas: Oxidizer Shock
1 Cal Spas: pH/Alkalinity Up
1 Cal Spas: pH/Alkalinity Down
Power Soak (Filter Cartridge)
Baqua Spa Waterline Control
Baqua Foam Disperser
Baqua Spa Calcium Hardness Increaser
And a few different types of testing strips.

I don't know what any of these do, completely overwhelmed, but I want to do this right. I got this mainly for my girlfriend who needs to relax after handling our 2 wild toddlers. I'm willing to do whatever it takes to get this right.


Well-known member
Jun 19, 2020
Los Angeles
These are th chemicals and a few pictures of the spa


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Well-known member
Jun 19, 2020
Los Angeles
Chemical images part 2


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In The Industry
Mar 21, 2020
Cabool, Mo
First off, read this.
If you have any questions afterward, just ask.


Well-known member
Jun 19, 2020
Los Angeles
First off, read this.
If you have any questions afterward, just ask.
ok. first it said to order the k-2006 testing stuff so i did. will arrive in another day or two
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