To not get rid of the hot tub?

[SunsetsInVenice]

We use the hot tub in the evenings, usually from 9PM-10PM. It does get quite loud but we only use it of an evening.
However, noticed next door neighbour is clearly not happy about it. Keeps looking out the window, opening and then slamming the windows and today told me the sound is carrying and stopping her from enjoying her evening especially as the noise is so distracting. Aibu to say we are hardly in it all day and that we aren't getting rid of it?

The best way to soundproof a hot tub is to live for enough away from others so that they can't hear it

BIL and SIL use theirs every night 'but only until 10.30'. They sing oasis songs

Time for the neighbours to shout back: "I don't believe that anybody feels the way I do about you now..."

I would say the 9-10pm, when most people are trying to wind-down and chill is perhaps the least-considerate time possible to be loud outdoors. What if your other neighbours have kids who are light sleepers, or have jobs with an early start?

Don’t b so selfish and use it earlier in the evening there is no reason to be using it that late.