Plumbing for seawater circuits is critical. Centrifugal air-conditioning pumps must be below the waterline to prime, and seawater hoses must rise continuously uphill from the through-hull fitting to the sea strainer and to the pump, and then continue uphill with a single high spot at the air conditioner.
You may have some preconceptions that turn you away from catamarans. But with voluminous interior space and serious seakeeping ability, the PC52 from Horizon may help to change your mind. Read the full test here. ▶