Understanding the Effects of Kinked Hoses on Water Pipes and Valves
Introduction
Is it harmful to run water through a hose for an hour when the hose is kinked? This article explores the effect of kinked hoses on water pipes, valves, and the pressure build-up within the system. We will also discuss how to determine if there is any damage without inspecting the pipes underneath your house.
When is There Pressure Build-Up?
The question often arises: is there still pressure in the pipes when all the taps are off? Contrary to what some might believe, even when all taps are closed, there is pressure in the system. This is because a kinked hose is similar to a slowly dripping tap, which maintains pressure within the pipes. It is only when the tap is opened that the pressure drops due to water flow.
Effects of Kinked Hoses on Water Pipelines
Flow Reduction: A kinked hose reduces the flow of water but does not affect the overall pressure in the system. The water company’s pressure is designed to withstand the utmost pressure, and the kinked hose is merely causing a reduction in water flow rate.
Pressure in Your Pipes: The pressure in your house’s pipes remains the same as in the blocked hose. Even if the hose itself can’t handle 60 psi, the piping in your house has no problem with the pressure. It’s always at the same pressure, just like when you’re not using the hose.
Household Pipes vs. Garden Hoses: The only way to increase the pressure momentarily in your household pipes is through water hammer, which occurs when you suddenly shut off a valve after a high flow rate. This can cause rattle in the pipes and potentially dislodge weak fittings, but it’s avoidable by not closing valves quickly, securing pipes, and installing water hammer arrestors.
Maximum Pressure in Your Water System: The highest pressure in your water pipes is when everything is off, as the system is designed to handle pressures far above the usual 'normal' range.
Potential Damage and Prevention
Damage from Abnormal Pressure: Abnormal water pressure can cause damage to the underground pipes, but this typically only occurs if there is an issue with the system itself, such as an old fitting that finally cracks due to high pressure over time. If your mains water pressure is high, you might consider installing a pressure-limiting valve to keep it within a safe range.
Kink-Induced Issues: A kinked hose primarily subjects the feed first section of the hose to full mains pressure, which might blow off a hose connection, easily repairable. Otherwise, no major issues are generally encountered. Modern trigger nozzles are designed to maintain proper pressure during use, minimizing potential harm.
Conclusion: Kinked hoses affect water flow but do not necessarily cause damage to the pipes or valves. Understanding the system and preventative measures can help ensure safety and efficiency in your home’s plumbing.