What chemicals do you use in a swimming pool?
chlorine, ph+, ph-, alkalinity, calcium, algaecide, and clarifier are your basics …………. Okay why is this flagged. supervisors are gay …………. some sanitisers are; sodium hypochl
What chemicals do you use in a swimming pool?
chlorine, ph+, ph-, alkalinity, calcium, algaecide, and clarifier are your basics …………. Okay why is this flagged. supervisors are gay …………. some sanitisers are; sodium hypochl
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