Pool equipment
Equipment master-records for the pool at New Hope. Each card links to a full record with model + serial + service log + reference links. End-of-design (EOD) horizon shown per item per feedback_tech_record_eod_and_stewardship_posture.md.
System stack
Original construction · 1993
Water volume · sizing
Working volume for chemical dosing + equipment sizing. The commonly-quoted 55,000 gal looks high for this basin — the honest estimate lands at 38,000–43,000 gal. Plan around 40,000.
Surface area = 39 × 21 = 819 sq ft, and a cubic foot holds 7.48 gal, so the volume hinges entirely on average depth across the whole basin:
To actually hit 55,000 gal you'd need an average depth of ~9 ft across the entire pool — meaning the shallow end and the slope would also have to average around 9 ft, which isn't physical for a residential diving pool. Even a generous profile (3.5 ft shallow shelf, 9–10 ft diving well) averages out to roughly 6.25–7 ft once you account for how much of the floor area sits in the shallow-to-transition zone.
The thing that trips up most 55k estimates: people anchor on the deep-end number (8–9 ft) and mentally apply it to more of the pool than actually sits at that depth. A diving well is usually a relatively small footprint at the far end; the slope and shelf eat most of the surface area at much shallower depths.
To tighten it, the three numbers that matter are the shallow depth, the deep/diving depth, and roughly how long the shallow shelf runs before the slope starts — those give a much narrower figure than the slope-averaging shortcut.