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so said, don't you check "new" things when you fit them on Grohe cisterns there is a plastic clip which locks the slide in transit that needs to be removed

so this is about the tap water, expect the heat exchanger may be scaled up, get it descaled by a powerflusher or replaced. the water goes through the heat exchanger and gets too hot so the boiler cuts out the screw cap on the pump is for bleeding it, it would spray water till the system...

use basin hangers, the basin drops onto them rather than bolting to wall

so many options each with advantages and contras traditional open vent system new cold water storage cistern and high efficiency hot water with sealed boiler - gravity hot water pressure may not be acceptable combi no cisterns or cylinders DHW flow rates may not be acceptable unvented...

elson water heater is a fortic tank the overflow is connected to the cold part so you've got to heat the whole thing to boiling point this is open vent system you can only get boiling water standard wastes will handle boiling water at atmospheric pressure is no a long enough answer ?

used to be easy with lead solder

If you unlock the central tube (it is a bayonet fit) and lift it up check the soft sealing washer at the bottom, old ones tend to get bubbles and won't seal others get scaled up and won't seal till cleaned. Check the seat for damage bits or scale if this isn't clean the washer cannot seal...

search for a TREVI BOOST this is the shower to use mains cold water to suck the hot from the cylinder. If the mains is above 2 bar you may reqiure an adjustable pressure reducing valve otherwise the coldness of the mains will make all showers too cold

my last site inspection all the inspector was interested in was the pressure bypass valve, TRV on all but hall, fire valve in free air with tiger loop sealed system happy inspector but he didn't ask about any of these :lol: inspection passed :lol:

hey guys why not use a meter to test for voltage with all the tails split wide apart only one wire will be live.. :roll: probably red if neutral is used probably blue yellow probably return gnyl earth or if the old valve was full changeover red live blue nc yell no gnyl earth...

emergency callout but the lady said not before noon as she wanted a lie in on Saturday morning ! is a "lie in" a party where evefryone has to lie? sleep is what you grab between emergencies

Impersonating not a bit really wierd to see you there. part 1 valve has a straight arm and flows out of the bottom of the brass part 2 valve has a bent arm and a plastic piece on top to divert the water downwards the part 1 is not allowed for cswc as it doesn't provide enough clearance for...

Hi what you have is called a FORTIC cylinder. The flow of hot water in a new system is defined by the height of the cold water in the system "the head" the pipe that feeds water from the cold section on top to the bottom of the hot section is internal (in the bulge on side on cylinder). I would...

when the hot water tap is opened a diaphram flexes and triggers the boiler to fire up. this then circulates boiler water through the domestic hot water heat exchanger and heat transfers to the tap water. If you get poor flow from the hot tap, expect scale problems, typically boiler fires up...

i recently dismanteled a similar ? valve and it all came apart with circlips or allen keys, the main body was scaled up and having cleaned it stopped leaking

the Megaflo has internal expansion and as you say the bubble has to be re-instated sometimes. The red expansion vessel with the screwdriver isolation valve is part of the heating system. There are also 2 release valves associated with the Megaflo which should indicate they are leaking by a...

how high is the expansion loop above the cold water tank? look for 450mm is it dripping? next thought I have recently had 2 hot water cylinders leaking internally between the central heating coil and the domestic water. This results in water overflowing from the lower tank warning pipe and...

Hi are you getting gas in the radiators which needs to be released? If you are then it is corrosion which is reducing the pressure."iron radiators + water = iron oxide + hydrogen" the hydrogen being gaseous can be squeezed to reduce the water pressure. If this all applies you need to add...

Hi JOHND If the cylinder is primatic, the heat water will not be the same as F&E check on the number of drain valves. Primatic cylinders are not so common but there are still some out there.

Hi Feed and expansion cistern can use part 1 or part 2 ball valve. Cold water must use part 2 valve to conform with water regs.