At Michell Farms on the Saanich Peninsula, the pumps are working 24/7. Water is rushing out of wells at about 600 gallons a minute into a series of ponds, and then pushed through pipes to ­irrigation systems to keep the family’s crops alive and growing. With no measurable rain for nearly two months now, and nothing but heat in the forecast, water is becoming a precious resource. On many of the Gulf Islands, visitors are being asked to bring their own water. Residents are urged to do everything to preserve wells, aquifers and natural bodies of water. Some marinas aren’t filling water tanks for boaters.