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goltec

join:2013-09-21
Thailand

[Plumbing] floater valve for brine tank water softener

Hello.
I live in Thailand and the people here use brine tanks without a floater valve.
Is this possible??
If so, I still asume that it is bettter to have one.
I can not buy one here....
Is there a way I can make one my self for example using a normal floater valve that is used in the water reservoir of a toilet?



StillLearn
Premium
join:2002-03-21
Streamwood, IL
Reviews:
·AT&T Midwest

I think it is common for the water softener head to just meter an amount of water into the brine tank during the refill phase. I am no expert on water softeners, but I don't think there is typically a float valve. Maybe somebody will know something different.


iknow_t

join:2012-05-03
reply to goltec

there must be a very good reason they are not used, and you can't even buy one there. maybe something unique to the water? it may cause too many problems. a plumber in Thailand would know the answer.


goltec

join:2013-09-21
Thailand
reply to goltec

Thanks for your reactions guys....
more info is welcome if possible, but if I understand it right the floatervalve is not REALLY needed if the automatic control head is programmed to let a certain amount of water into the tank.
the floater valve is just an extra safety device. is that right?
The thing is, if I google for water softener or brine tank I only get images WITH a floater valve, never without. so that is why I thought it was really needed.


dmagerl

join:2007-08-06
Woodstock, IL
reply to goltec

I dont think I've ever owned a softener with a float valve.



rfhar
The World Sport, Played In Every Country
Premium
join:2001-03-26
Buicktown,Mi
Reviews:
·Power-Net Intern..
reply to goltec

Welcome to DSLR.
I do not know nor does Google help learn what you mean by a floater valve. My tank has a timer that every few days allows my system to regenerate the medium about 2am. It operates the bypass valve and sends some brine through the media to regenerate it then replenishes the water to make some more brine for the next cycle. The other type of water softener that I am familiar with has some gears that measure the water going through and switch from one media tank to another regenerating the used up tank. Neither of these types have use for a float.
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b_p_smith

join:2002-02-13
Merrickville, ON
Reviews:
·RipNet

The floater valve in question is related to the container used to hold the salt pellets. Some (like mine) are separate but most current softeners seem to be all-in-one units. But the basics are the same.
Here's a picture I found on the Interweb that illustrates: »www.oxfordplumbing.ca/images/wat···gram.jpg .

I believe the float valve the OP is talking about is in the lower-right of this picture. Normally in your salt tank there's a white plastic cylinder with a small tube going to the actual softener (for the water/brine to flow), and if you pop the cap off that tube, you'll see the valve assembly.

I've never seen a softener without one of these things, but I tend to lean towards the "budget" variants so maybe the higher-end units indeed deal with this another way.
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rfhar
The World Sport, Played In Every Country
Premium
join:2001-03-26
Buicktown,Mi

Good info. My tank has one too but being in the Tube I never bothered to notice it.
That float must be what keeps about ten or twelve gallons of water in the bottom of the tank.



StillLearn
Premium
join:2002-03-21
Streamwood, IL
Reviews:
·AT&T Midwest
reply to b_p_smith

Click for full size
said by b_p_smith:

Here's a picture I found on the Interweb that illustrates: »www.oxfordplumbing.ca/images/wat···gram.jpg .

I have no big riser tube. My brine container is filled about half-way up with salt, and a dip tube (maybe 7/16 or 11mm or smaller OD) goes down into the salt. The black fitting is an L that connects through the tank wall, and goes to the water softener head. I felt down about 7 inches into the brine+salt, and I felt no change in the tube.

I see pictures of systems with float valves. Mine does not have one that I can see, and I presumed I did not have one. I may have presumed wrong. I did not install the system, and maybe there is a valve system at the bottom of the brine container as in this drawing:

My brine tank


dennismurphy
Put me on hold? I'll put YOU on hold
Premium
join:2002-11-19
Parsippany, NJ
Reviews:
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reply to goltec

I'm about 3,000 miles away from home at the moment, but I can assure you that my softener absolutely has a float valve in the brine tank. I know because it got stuck a month or so ago and I had to free it. Tank needs a good scrubbing, but it's got about 400+ pounds of salt in it at the moment; I'll wait until it uses up most of it.



StillLearn
Premium
join:2002-03-21
Streamwood, IL
Reviews:
·AT&T Midwest

4 edits

Click for full size
non-electronic
I may stop adding salt for a while myself to see if there is something down there. As long as there is enough time between cycles, the water should still get salt-saturated with a lower salt level I think.

Referring to the drawing I inserted above, I may have an air check valve under the salt. On the other hand, that clear cylinder on my old control head may be the check valve; it may just be a sight glass to note if you are sucking air. The tube to the brine tank is what connects to the top of the clear cylinder. Anyway, I am adding the float valve thing to the list of things I don't know but intend to learn a bit about.

»www.terrylove.com/forums/archive···327.html discusses a system with no float valve. I wonder what the incidence is.

goltec

join:2013-09-21
Thailand

OK, thanks a lot you all..... sorry for my late reply.

I guess I will look for a brine valve outside of Thailand....
As I understood now the valve prevents the brine tank from overflowing in case of malfunction of the automatic filterhead and it prevents air to be sucked in to the filter in case there is not enough water in the brine tank.



ArgMeMatey

join:2001-08-09
Milwaukee, WI
kudos:1
Reviews:
·Time Warner Cable
·AT&T Midwest
·voip.ms

said by goltec:

As I understood now the valve prevents the brine tank from overflowing in case of malfunction of the automatic filterhead and it prevents air to be sucked in to the filter in case there is not enough water in the brine tank.

The idea behind the float is that when the brine is depleted, the floating ball sinks, shutting off brine flow via the control head to the resin tank. On some designs it is part of the head and on others it's in the brine tank.

There is typically not a float valve to stop "recharge" fresh water from overfilling the brine tank. On the designs I have seen, there is a dial that you set to determine the flow rate of water into the brine tank during regeneration. Using a motorized cam, the timer determines how long a flapper valve stays open to refill the brine tank. To protect against an overflow spill, there is an overflow hole closer to the top of the brine tank, that you can connect to a hose.
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