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Hello all, I'm new to Pool Spa Forum and also for the hot tub/spa subject. Please forgive me for my lack of knowledge. I tried every search engine to find this in-ground spa brand but did not have much success. Does anybody recognize this hot tub brand in the picture? How old (roughly) is this unit? ______ Here is the full story behind this, and I have a few more questions if you have time to read. The house I purchased a few months ago came with this in-ground hot tub, and it was listed as a non-functioning item. After all the hours/yard cleaning and renovations, I finally got free time to look at the hot tub. It was covered with a heavy wooden panel, and it seems the hot tub was not used for years (tenant confirmed they did not use it for six years at least.) The acrylic/fiberglass tub had few inches of old dirty water left with some residue. I cleaned up everything and washed the tub. I filled the water and turned the two pump switches (picture 6), everything seems to be working fine. Jets working, Water circulation pump is working, heater turned on and seemed working fine too. These are the equipment this system has, Jandy LXi gas heater (runs on natural gas) Jandy Pro Series CS200 filter Two separate pumps (for water circulation and jets) Air pump (very loud) Of course, the first round of water was full of dirt/dark-colored. I removed the water and cleaned the filters (Jandy CS200, canisters 1 and 2.) Filled up again with water, added liquid chlorine (Home Depot brand and added a little over half a gallon), let it run for few hours. Removed water again and cleaned the tub shell, filters. Filled up with water for the 3rd time, added liquid chlorine, circulated for few hours every day for a week (now water is clear), pumped the water out again. Now the tub is empty, as you see in the pictures. I ordered a new filter for the Jandy CS200 to replace the old filter. I will fill water again, run one more time for a week, and remove the water for the 4th time before using it. I know this is an old hot tub, but I would like to use it until the heater/motors fail (if possible) and maybe replace this with an above-ground new hot tub. I appreciate it if can help me to identify/replace few things, and some advice, What else should I do before I use it (I will do the water PH, alkaline, chlorine balance)? Hot tub jets are old and brittle (Picture 3, 4 & 5.) I need to replace them (if possible) and want to know how to remove them. I was managed to pull two fish eye parts out (picture 5) but not the whole unit that I need to replace. Two small holes in each side of the jet cover (picture 4) are just plastic hole. Not screws or anything in it. How can I remove yellow stains on the tub shell? (stains from old water and organic materials left for years). I tried bleach, white vinegar, alcohol but had no luck of removing them. Do I need to run both pumps all the time when I use the hot tub? Can someone please explain to me the pump/filtration process in picture 6? I appreciate if you have time to help me with this project.

No, I do not own a portable spa but I saw nowhere to post for an ingound one. Mine is more like a small pool and holds about 500 gal water. I have had this for over 25 years and replaced the original gas heater twice. There is no way I can get it to heat between 99 and 106. I just barely move the temperture dial but it just always says 99 or 106. Never under nor never above. I would like some suggestions. The Spa tech has been telling me about the much smaller in size electric heaters but $1800 is just too much to handle on SSA. I need to keep this one running at a comfortable in-between temperature.