Pool Crevice Vacuum

I have used the small vacuum head which worked pretty well at getting into the angled corners at the bottom of the deep end. I thought the suction was a bit too much and would worry long term about wear and tear on my vinyl liner. I made a bigger one with more scallops for water ingress and made them fully semi-circular so each has more area. Unlike the commercial larger versions (which aren't so good for crevices) this doesn't have a brush on it. I might make this a future development. Pri