Out of water at a Sunshine Canyon rental: the first hour and the water delivery

A cistern is a buried or basement tank that holds water delivered by truck, collected from a roof or pumped from a low-yielding well. Colorado's standard requires the tank to be watertight, buried below the frost line, vented through a screened pipe, disinfected before use and installed by a licensed pump contractor (Colorado Division of Water Resources, 2 CCR 402-2 Rule 11). A submersible pump near the bottom of the tank pushes water into a pressure tank. A pressure switch turns the pump on when house pressure falls to around 20 psi and off at around 40 psi; a 42-gallon pressure tank holds only about eight gallons of usable water between cycles (Penn State Extension, using low-yielding wells). A float switch or low-water cutoff is meant to stop the pump before the tank is empty (NC State Extension, choosing a pump).

Sizes vary with the home. Whole-house hauled-water cisterns in one Canadian fact sheet typically run 1,200 to 1,650 imperial gallons (Manitoba Water Stewardship). Against that, the EPA's WaterSense programme puts use at about 82 gallons per person per day and a family at more than 300 gallons a day (EPA WaterSense). A 1,500-gallon tank at half full, eight guests, two showers each and a hot tub top-up is a Saturday that ends dry.

The call almost always starts with one of these. Each means the tank is at or near the pump intake. The first move is the same: stop using water.

• Taps that spit air and cough before water comes. Well-water guidance describes the pump sounding like it is sucking air and pushing air and sediment when the level drops below the intake (Texas A&M AgriLife Extension).
• Pressure that drops to a trickle in the shower, recovers after a minute and drops again: the pressure tank is emptying faster than the pump can refill it.
• The pump running constantly or clicking on and off every few seconds. Short cycling points at the pressure tank; a pump that never stops has nothing left to lift (University of Nebraska Extension, G2153).
• No water from any tap with the pump silent. Either the low-water cutoff did its job or the breaker has tripped.

Start the moment a guest mentions air in the taps. In order:

• Ask the guest to stop all water use: no showers, laundry, dishwasher or hot tub. Toilets only, one flush per use. This buys hours.
• Ask them to switch off the pump's breaker if the taps are producing air. A pump running dry can damage itself, which turns a water delivery into a pump replacement.
• Check the tank level if the home has a gauge or sight tube. Check the last delivery date on your log. Those two numbers say whether the problem is supply or the pump.
• Call the home's regular hauler first, then the others on your list. Give the tank size, the access route and the fact that guests are in the home now. Ask for the earliest slot and the cost.
• Message the guest with the plan, a delivery window and what still works (the first message below). Have drinking water delivered if the wait is long.
• If no truck can come today, decide the fallback now: a night elsewhere for the guests or a partial refund with bottled water if they'd rather stay. Put it in the next message.
• When the tank is filling, have the pump breaker switched back on and a tap run until the air is out of the lines.

A canyon delivery depends on three things the hauler will ask: how many gallons the tank takes, how a truck reaches the fill point and the road conditions that day. Haulers who serve public water systems in Colorado work under a state rule that requires an approved operating plan and a disinfectant residual test on each delivery tank (Colorado 5 CCR 1002-11.41). For a private cistern, ask where the water comes from and whether it is an approved public supply, which is what health departments recommend for any hauled water (Minnesota Department of Health, cisterns).

Ask for a time window, the price per load and whether a partial load is possible. If the pump ran dry before the breaker went off, book a pump contractor for the same day. If the home has a separate fire cistern, which Boulder County requires in mountain areas at 1,800 gallons or more in most districts, that water is for the fire department and stays apart from the domestic tank (Boulder County, form W/05, emergency water supply).

We send the host the options with the price and book on the host's YES. The hauler gets the guest's number if the gate or the dog needs managing; the guest gets the hauler's window.

The first message turns a scary silence at the tap into a plan. Replace the parts in curly brackets.

A few hours without showers, with toilets working and a delivery the same day, is a partial refund: a night's rate or the share of the day they lost, sent before anyone asks. Overnight without water, or a home where the toilets have stopped too, is a night elsewhere at your cost. Offer it rather than waiting for the guest to decide.

Water is also where Boulder County's rules meet your occupancy. Short-term rentals in unincorporated Boulder County need a county license, and the county notes that a home's septic capacity can limit the number of guests it may host (Boulder County, short-term and vacation rental licensing).

Every dry tank we have handled was predictable a week earlier. The habits we run for cistern homes:

• Know the tank's size in gallons and the home's daily use at full occupancy. Eighty-two gallons per person per day is the EPA's average; a hot tub and a washer push it higher. Divide the tank by the daily use and you have the guest-days a full tank covers.
• Put the level on the turnover checklist. The cleaner reads the gauge or dips the tank and sends a photo with every clean. The number goes on a sheet beside the next three bookings' guest counts. Deliveries are scheduled from that sheet before the big group.
• Fit a level sensor with a low alarm that reaches your phone, and a low-water cutoff on the pump if the installer left it out.
• Tell guests in the listing and the house manual that the home is on a cistern, what that means for showers and laundry and what to do if the taps spit air.
• Drain, inspect and disinfect the tank on the yearly schedule health departments recommend, and keep hauled water coming from an approved source (Minnesota Department of Health).