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Chat Area => General Discussion Area => Topic started by: Sir Tigger KC on 28 September 2024, 21:45:57

Title: Float Valves
Post by: Sir Tigger KC on 28 September 2024, 21:45:57
I need one.  :)

The old one I've pulled out of the central heating expansion tank is 30 years old so it's done well, and is a Part 1 type where the water pours out of a hole underneath.

Screwfix have those, but also have Part 2 types with a little spout on the top. Is there any advantage of the Part 2 over the Part 1?  ???


https://www.screwfix.com/p/flomasta-brass-part-1-float-fill-valve-1-2-/134jn#product_additional_details_container

https://www.screwfix.com/p/flomasta-brass-part-2-float-fill-valve-1-2-/352jn#product_additional_details_container

I was going to change it like for like, but thought I'd check with the intelligentsia here first!  TIA!  :)




Title: Re: Float Valves
Post by: dave the builder on 28 September 2024, 22:20:11
Part 2 has more adjustment options for your ball  :o
Also, a polyethene sock can be fitted to the outlet (to quieten the water when filling)
oh ,and it's a quid cheaper  :D
Title: Re: Float Valves
Post by: Sir Tigger KC on 28 September 2024, 23:54:17
Part 2 has more adjustment options for your ball  :o
Also, a polyethene sock can be fitted to the outlet (to quieten the water when filling)
oh ,and it's a quid cheaper  :D

When I first looked earlier they were both £7.98, and had gone up in price when I went back to get the links a couple of hours later.  ::)

Title: Re: Float Valves
Post by: Kevin Wood on 29 September 2024, 01:36:12
I'd replace like with like. It's an expansion tank so it'll just sit there until the new one siezes up like the old one did. If it starts making any noise you have bigger problems. ;)
Title: Re: Float Valves
Post by: Doctor Gollum on 29 September 2024, 10:49:33
Part 2 has more adjustment options for your ball  :o
Also, a polyethene sock can be fitted to the outlet (to quieten the water when filling)
oh ,and it's a quid cheaper  :D

When I first looked earlier they were both £7.98, and had gone up in price when I went back to get the links a couple of hours later.  ::)
Revist the page, then clear your last 15 minutes of history, and revisit it and you should find the prices have returned to the previous amount :y
Title: Re: Float Valves
Post by: johnnydog on 29 September 2024, 20:10:41
Airlines seem do that when searching for a flight - the price seems to go up everytime you re-visit a site after checking other airlines for the best deals...
Title: Re: Float Valves
Post by: Sir Tigger KC on 29 September 2024, 20:17:56
Airlines seem do that when searching for a flight - the price seems to go up everytime you re-visit a site after checking other airlines for the best deals...

Yes always clear your cookies before visiting any site like Booking.com.  :y

I think I just caught the tail end of a promotion with my first visit to Screwfix though rather than any dark arts with cookies.  :)
Title: Re: Float Valves
Post by: Viral_Jim on 01 October 2024, 10:07:38
Part 2 has more adjustment options for your ball  :o

Going to ask the dumb DIYer question now....

What does Part 1 and Part 2 refer to? Are they some portion of building reg's?
Title: Re: Float Valves
Post by: Sir Tigger KC on 01 October 2024, 10:52:47
Part 2 has more adjustment options for your ball  :o

Going to ask the dumb DIYer question now....

What does Part 1 and Part 2 refer to? Are they some portion of building reg's?

I assume so and just to complicate things further there's a Part 3 float valve as well.  :)

I fitted a Part 1 to my F&E tank, so like for like and it just seems a simpler design to the Part 2. Job jobbed.  :y
Title: Re: Float Valves
Post by: cam.in.head on 01 October 2024, 11:54:13
like for like in my opinion . a good old brass unit rather than the modern plastic ones any day .
and as said ,if its a heating expansion tank it will rarely be operating anyway !
Title: Re: Float Valves
Post by: dave the builder on 01 October 2024, 18:31:35
Part 2 has more adjustment options for your ball  :o

Going to ask the dumb DIYer question now....

What does Part 1 and Part 2 refer to? Are they some portion of building reg's?
Part 2 is water regs WRAS to do with not siphoning back into the mains water supply if water pressure fails or the tank over fills above the ball c**k  ;)
also check valves on mixer taps and outside taps etc

part 1 is not worth fitting anymore IMHO
Title: Re: Float Valves
Post by: Sir Tigger KC on 01 October 2024, 19:54:14
Part 2 has more adjustment options for your ball  :o

Going to ask the dumb DIYer question now....

What does Part 1 and Part 2 refer to? Are they some portion of building reg's?
Part 2 is water regs WRAS to do with not siphoning back into the mains water supply if water pressure fails or the tank over fills above the ball c**k  ;)
also check valves on mixer taps and outside taps etc

part 1 is not worth fitting anymore IMHO

Well I did.  :P
Title: Re: Float Valves
Post by: dave the builder on 01 October 2024, 21:57:11
Part 2 has more adjustment options for your ball  :o

Going to ask the dumb DIYer question now....

What does Part 1 and Part 2 refer to? Are they some portion of building reg's?
Part 2 is water regs WRAS to do with not siphoning back into the mains water supply if water pressure fails or the tank over fills above the ball c**k  ;)
also check valves on mixer taps and outside taps etc

part 1 is not worth fitting anymore IMHO

Well I did.  :P
in breach of WRAS  :o
The water police will arrest you and throw you in jail the canal  :D
Title: Re: Float Valves
Post by: Sir Tigger KC on 01 October 2024, 22:57:40
Part 2 has more adjustment options for your ball  :o

Going to ask the dumb DIYer question now....

What does Part 1 and Part 2 refer to? Are they some portion of building reg's?
Part 2 is water regs WRAS to do with not siphoning back into the mains water supply if water pressure fails or the tank over fills above the ball c**k  ;)
also check valves on mixer taps and outside taps etc

part 1 is not worth fitting anymore IMHO

Well I did.  :P
in breach of WRAS  :o
The water police will arrest you and throw you in jail the canal  :D

How can the tank water siphon back into the water supply, if the water level goes over the ball cock, as that would mean there is a flow of water coming out of the valve?  :-\

Frankly I've got bigger problems if that happens anyway, as it would probably mean a combination of a blocked overflow and a stuck or failed ballcock valve, meaning a god awful mess!  :(  ::)
Title: Re: Float Valves
Post by: cam.in.head on 02 October 2024, 10:33:44
if the valve is open slightly and the water level goes above the outlet and then the water pressure drops to zero the water can suck back down the pipe bringing tank water with it .
granted its a lot of "ifs" but i think that what it means ?
Title: Re: Float Valves
Post by: Viral_Jim on 02 October 2024, 11:11:43
Part 2 is water regs WRAS to do with not siphoning back into the mains water supply if water pressure fails or the tank over fills above the ball c**k  ;)
also check valves on mixer taps and outside taps etc

part 1 is not worth fitting anymore IMHO

Good to know, thanks  :y