Pool demand is one of the sharpest seasonal curves in home services, and the shape matters more than the volume. Opening searches spike in a two-week window that moves with the weather rather than the calendar, then collapse into a long steady plateau of maintenance and repair queries, then spike again at closing. A campaign that goes live in June has already missed the year's most valuable moment, because the homeowner who books an opening usually stays on a weekly plan through the fall.
The other half of demand is unplanned and emotional. A pool turns green over a long weekend, the pump starts screaming, the heater will not fire before a party, and the homeowner searches from the deck with the phone in one hand. Those searches convert on whoever answers, and they are the single best source of new route customers, because a homeowner who has just been rescued rarely goes shopping again.
The competitive field is unusual too. You are bidding against solo owner-operators who run a route out of a truck and spend nothing on marketing, national franchise brands with real ad budgets, and big-box retailers whose water-testing counters intercept the chemical question upstream of you. None of those three compete the same way, so the campaign has to defend different terms for different reasons: route terms against the solos, repair and equipment terms against the franchises, and chemistry and troubleshooting content against the retail counter.