Our cruising style has always been to alternate between stays in marinas and anchoring out. When anchoring for three- or four-day stretches, abundant fresh water for showering, washing and cooking is obviously a boon to life aboard. But we also figured that having the capacity to make our own water and arrive with full tanks when visiting marinas is a big plus. The reason: Access to fresh water of drinkable quality is not always assured. For example, in some Corsica marinas, water was turned off for many hours to conserve water. In Mallorca, there were no conservation measures, but because the water quality was suspect (too chlorinated or outright raunchy), it was suitable only for washing, not for drinking.