Water filter tap from Mains or from kitchen Tap supply?

[spintop]

Is it better to go directly from the mains for a water filter tap or from the cold water running into kitchen tap. Is it cleaner from the mains line and ready to drink quicker?

The water line runs from the main to the tank upstairs and back again for the rest of the house. Also splitting from the mains is the outside tap connection.

 

[townfanjon]

It should only come from the mains , it must not come from a tank

 

[spintop]

It goes up where the tank is located to one of those cold water combination valves then to the rest of the house.

 

[Ant Parkes]

Tank or cylinder? Sounds like you mean you have an unvented cylinder and the cold to the taps is T'd after the pressure has been reduced after the combination valve for equal pressures between hot & cold.

If this is the case, it can still be T'd into the cold pipe going to your tap as it will be mains water. Just reduced.

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However, if you do mean tank, the cold water comes into house, feeds 1 or 2 outlets (tap & outside taps or boiler) and then goes up to a cold water storage tank and then comes back down and feeds the rest of the taps (indirect cold water). Then you cannot T into it if it comes from the cold water storage tank.

 

[spintop]

Sorry I seem to call it a tank force of habit, but yeah you are right, Ant I meant to say an unvented cyclinder. Would it be better off the mains it terms of cool water ready to drink, rather waiting for the cool water to run.

 

[Ant Parkes]

The water coming back down from by the cylinder is still cold mains, it's just been reduced through a reducing valve.

A combination valve has a filter, check valve, reducing valve and pressure relief.

As this is the case, I'd install the tap and connect to cold water however easier. What's closer. Whether that be cold mains going up to the cylinder, or the reduced that comes back down.

When we sure to have a filter tap we used to have to run it a minute anyway to let it get colder.

 

[spintop]

Cheers Ant great help. Connection wise both are similiar in terms of ease. The reason I was asking is my thought process was that, the water coming back down is subject to higher temperature sitting in the pipe by the cylinder upstairs and possibly take longer for the cold water to bleed through.

 

[Ant Parkes]

@spintop, I'd imagine it only to be marginal though? I tend to find our mains cold can differ in temp too depending on the day, haha.

 

[spintop]

Yeah can differ sometimes depending on weather. Thanks for replying cheers