The photo looks good with company of all those beautiful ladies.. until I saw the same one lying deflated in the loft
Bought a Palm Springs last year and love it, crossed my mind it might be slightly chavvy but I feel the palm springs looks ok in the garden in it’s beige colour and actually it’s so lovely who gives a .... I enjoy a soak after a work out, the kids love it, it’s lovely in the cold and equally on a sunny hot day, we don’t run ours all the time, only when we plan to use turn on to heat up in enough time, ours does 2 degrees an hour, filter can get dirty up but that’s it’s job! Change a lot more if it’s being used loads especially in groups/kids etc, we manage the chemicals closely always test before getting in, we don’t get out much so don’t mind a bit of outlay as it’s our luxury.
I used to know a hot tub guy who worked for Forest Holidays but gave it up after having to literally fish shit out of them too many times. Disgusting.
Smaller models are around 1000l of water, so cost less to heat and fill, this one is 1500L. You can also get models with timers that you can set so they do the temp over night and then heat up again ready for the set time. The time to heat is more annoying than cost, as they auto shut off after 3 days and if you forget you can be waiting 1-2 hours per degree. So a large hot tub would take up to 5 hours just to go from 30 degree to 38 degrees. You can also make/buy enclosures to go round them that if you insulated would help in winter. Water changes are still needed (unless you get quite scientific with the chemicals) but you could get away with 3+ months with just controlling the pH, chlorine and total alkalinity. So my answers 1=950-1500 liters to fill depending on model, 2=3-4 months, 3= £30 a month of you use it regularly. (You could save a fair bit if you use solar or economy 7 if you get a model with a timer, or do it manually)