What is Your Opinion of This Kohler Toilet with K-4519 tank

[KC27]

I have a Kohler toilet in my bathroom with these numbers in the tank

T 39
K4519
20399
3 1

What is this model toilet's reputation in regards to flushing solid waste? I'm considering replacing it because it seems to get clogged fairly regularly by one adult member of the family and one who is not even a teenager yet. If this toilet is supposed to be good a handling solids, I'll go ahead and do some of the things suggested on some of the other threads I've read on this forum before resorting to replacing it.

Also, can someone offer some guidance on the proper water level. The word "waterline" is inked in the tank just below a small ledge that runs around the circumference of the tank. Is the proper water level supposed to be even with that ledge? My water level is about 3/8" below the ledge, maybe that could be the cause of the clogging? I do not have an owner's guide, and have been unable to locate one on the web to verify the proper water level.

Any ideas would be appreciated

 

[Terry]

The K-4519 tank is the old 3.5 gallon per flush tank.
In the late 80's they went from 5.0 to 3.5 and many plumbers thought performance dropped a bit during that time.
A new 1.28 or 1.6 from Kohler with class five or six would clog less.

You may be able to tune the old one up though.
Water level in the tank is normally about 1/2" below the overflow tube.

Sometimes over time, the trapway collects stuff. We sometimes find that running an auger through may be needed.

 

[Sponsor]

 

[KC27]

Thanks for the information. Based on your description proper water level, the water level in this toilet is fine. I'll give the auger a try.

Thanks again.

 

[Gordon Lavender]

I have a Kohler toilet in my bathroom with these numbers in the tank

T 39
K4519
20399
3 1

What is this model toilet's reputation in regards to flushing solid waste? I'm considering replacing it because it seems to get clogged fairly regularly by one adult member of the family and one who is not even a teenager yet. If this toilet is supposed to be good a handling solids, I'll go ahead and do some of the things suggested on some of the other threads I've read on this forum before resorting to replacing it.

Also, can someone offer some guidance on the proper water level. The word "waterline" is inked in the tank just below a small ledge that runs around the circumference of the tank. Is the proper water level supposed to be even with that ledge? My water level is about 3/8" below the ledge, maybe that could be the cause of the clogging? I do not have an owner's guide, and have been unable to locate one on the web to verify the proper water level.

Any ideas would be appreciated

SO MY QUESTIN TO TERRY HIGH HIGH IS THE OVERFLOW TUBES SUPPOSE TO BE? What if somebody rebuilt it at the wrong level and the current tube and water line are incorrect. So the question is what is the height of the overflow suposwe to be now what it is stained at.

 

[Standardairconditioner]

Generally with all toilets, the water level in the tank is supposed to be as high as it can be without water wasting into the overflow.

Some people think they can save water by having the fill value shut off prematurely, all this does is cripple the toilet for an improper flush (skid marks from poo, backflow from the trap).

The fill valve is easily adjusted, if you can't figure it out, post a pic here and someone will identify it easily.

 

[Terry]

The 3.5 gallon bowls were only made for a short period of time. They did require quite a bit of water to make them work. The overflow tube will be below the flush handle. You don't want water leaking from the square hole behind the handle.
With the trapway clear, the work okay. Over time with some water, small holes can lime up. If the rinse doesn't come down the bowl like it should, sometimes poking the rinse holes clear with a wire helps.

 

[Joelle]

When my neighbor flushes his toilet, water is siphoned from my bowl. We have had plumbers check the vent stack and no blockage. Also, when the plumbers looked at our toilets, they mentioned that my neighbor had an older 3.5 gallon flush toilet. I have a toilet that works fine. It is a Kohler 1.6 gallon flush toilet. My toilet does not siphon water from his bowl but his toilet siphons water from mine when he flushes. Also, when the plumbers were checking our toilets, one of the plumbers adjusted the water level on my neighbor's toilet. When he did this, it took about 10 flushes versus one for all of the water to be siphoned out of my bowl. My neighbor did not want to adjust the water on his flush because his flush became weaker, and he was concerned about all the toilet paper not being flushed down with one flush. If I found a 3.5 gallon flush toilet or if the condo association purchased a 1.6 gallon toilet for my neighbor would that resolve the issue? Also, if I adjusted the water level in my bowl, would it help prevent the water from being siphoned out. Also, when my neighbor flushes his bowl and the water is siphoned from mine the water level in my bowl does return very slowly over 3 hours. I would really like to have this issue resolved.
Thank you for your time!