Also when I run the pump there's no air coming out of the taps (at least not yet) which I would have expected with any sort of leak in the pipes. Man Overboard Lifebuoys & Rescue Slings Danbuoy General Man Overboard Equipment General Safety Fire Extinguishers & Fire Blankets All Safety Blue Gee Hempel Paints International Paints MG Duff PSP Shurhold Starbrite Swobbit System Tecnoseal West System All Brands My immediate thought was that I must have a leak somewhere caused by a frozen pipe over the winter. But I took particular care to drain the system of water using a Floe draindown attachment and also driving the vehicle around with the drain valves open for a while to release any dregs of fluid. Yes, you can continue to return items as normal as long as you follow the government guidelines about leaving your house.

So it has worked fine for a year, works fine when I test, but since mid winter blows fuse for user, with no changes/alterations to the system?? Confused. Could there be anything else I should ask the user? I had initially suggested switch pump off at caravan door each use, but later said perhaps leave on as that could affect something. Sail Handling Headsail Reefing & Furling Mainsail Control Headsail & Genoa Control Sheet Winches Lewmar Sheet Winches Lewmar Electric Winches & Conversions Antal Winches Winch Handles & Accessories Surge dampers became necessary in some caravans, because the storage water heaters like the Carver and Truma models all needed to have a small air cap in the tanks. This was to allow the water to expand when it was heated. The consequence of ths compressed air cap was that the hot water system attained a higher pressure than the cold water, and when a mixer-tap was opened ( for example in the shower) the pressure in the hot tank would push hot water out before the pressure switch on the cold would turn on. This gave alternate surges of hot and warm water rather than a steady temperature. Electronic Charts Garmin BlueChart G3 Vision - Small Area Chart Garmin BlueChart G3 - Regular Area Chart Garmin BlueChart G3 Vision - Regular Area Chart Garmin BlueChart G3 Vision - Large Area Chart Garmin Navionics+ & Navionics Vision+ All ElectronicsAnodes & Cathodic Protection Hull Anodes Shaft Anodes Prop Anodes Stern Drive & Sail Drive Anodes Trim Tab & Rudder Anodes Bow & Stern Thruster Anodes More Anodes & Cathodic Protection

Thanks for the welcome Derek. This forum contains so much useful info for the newbie like me. Even if it doesn't provide the answer it contains explanations which get me thinking about ways to solve problems.

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The solution is to provide a similar air cap for the cold water. This would act in a similar way to the hot, and smoothed or damps out the surges. I've just taken the connector apart and looked at the hose and cable inside and it looks perfectly fine with no sign of water damage to the interior and no sign of hose deterioration. I did notice that the hose is an interference fit on a spigot and that there was a 'rim' of some form of colourless dried adhesive around the hose end where it abuts the connector. Needless to say that adhesive has gone now as I disturbed it, but there was no sign of a leak past it. The only affect on the pump is to make it run slightly longer after the taps are closed whilst it builds up the pressure in both cold and hot systems, and delay the turn on of the pump when a tap is oped as the water is pushed out by the expanding air caps.

Overnight I charged the battery and this afternoon the same problem occurred. Now as it's a pressure system which should cut out once the required pressure is achieved I could only assume there was a leak somewhere. Options for 1-2 working day delivery and next day timed services available on most items Zone B Surcharge Areas

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However, as Adria has chosen to fit the pesky Whale Pressure Switch that has its own NRV, there should be no imperative need for another NRV at or near the pump. The non return valve fitted on the wall inlet should keep the system pressure up, even with a pin hole in the delivery hose. I can only assume that something else happened when the surge damper was fitted, perhaps a pipe was rerouted that prevented it from vibrating against a wooden panel, or something like that. The Whale damper is quite ‘cheap and cheerful’ (though not exactly cheap) with no pressure adjustment. As mentioned in this 2013 Caravantallk thread Buoyancy Aids Adult Sizes Child/Junior Sizes Pet Buoyancy Aids Liferafts Coastal & Offshore Liferafts ISO Liferafts Liferaft Accessories

Consequently I am now having to switch the pump off and on at the main control panel to avoid constant noise from the pump and wearing out the pump / switch. If there’s no water leakage preventing the water system from pressurising properly, the prime suspect for the ‘surging’ must be the Whale Pressure Switch. So if the problem does not spontaneously cure itself, beginning by swapping the Pressure Switch would make sense. And, if there are no leaks and fitting a replacement Pressure Switch and pump is ineffective, that would just leave the Whale surge damper. Installation instructions for the damper are here Historically, some submersible water pumps were notoriously reluctant to prime and, when initially submerged, needed to be shaken to expel air and allow the pump’s impeller to 'get a grip’ on the water. OK if an Aquaroll-type external water container was being used, but not if the pump was in a motorhome’s fresh-water tank. Reich advertise “a patented ventilation system which is integrated into many of our pumps and provides immediate output after immersing into the tank”, and your Reisch pump should have that feature ad not suffer from priming problems. I'll take a more detailed look when I get home and maybe swap it out with the new pump. If that resolves the problem then I'll see if it's possible to disassemble it and fix it and it can become my spare pump.

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Even when there’s a NRV attached to a subersible pump’s outlet, that NRV will be ‘downstream' of the pump itself and, when the water system is drained down, the fresh-water tank is empty and thereand there might be residual water trapped ‘downstream’ of the NRV, the submersible pump should still self-drain. Engine Controls & Control Cables Ultraflex C8 Engine Control Cables Ultraflex C5 Mercury/Mercruiser Control Cable Engine Control Cable Fittings & Accessories Ultraflex B14 Engine Stop Cables Engine Controls Fuel Tanks & Accessories Fuel Tanks & Jerry Cans Fuel Line Fittings & Primer Bulbs Funnels & Filters More Fuel Tanks & Accessories Our collections by our couriers are happening as usual. As it stands, delivery times are not being affected too much. Please be aware though that Royal Mail and other couriers are sometimes prioritising essential items so please bear with us if your delivery takes slightly longer than expected.