Antifreeze - How much?

[Wolverine 1945]

Sunseeker 2500TS,,, 2 gallons is what I use after blowing sys out completely !!!
A little over 1 & a half gallons in the FW tank,,, left over goes in the drains & Toilet !!!

[checkmate99]

Originally Posted by markb422

Most newer RV's have water less traps and do not require antifreeze.
As far as adding to holding tanks, I usually get enough down the drain when filling the system waiting for the pink stuff to come out. That is if you blow out the water first and drain the tanks completely.
I just did my MH with one gallon of antifreeze.

Waterless traps? Please explain!

[A32Deuce]

Originally Posted by checkmate99

Waterless traps? Please explain!

X2! How would you keep sewer smell out of the RV. Just trying to learn!

[HerveVR]

Why not replacing the filter housing by a short pipe with fittings. Having a filter out of the RV permit to leak on the ground rather than in the rig.

Keep away of eventual problem.

[dbledan]

Originally Posted by A32Deuce

X2! How would you keep sewer smell out of the RV. Just trying to learn!

http://hepvo.com/ is the name of the trap replacement.

[Restcure]

Originally Posted by HerveVR

Why not replacing the filter housing by a short pipe with fittings. Having a filter out of the RV permit to leak on the ground rather than in the rig.

Keep away of eventual problem.

That's the plan. I didn't have time find or make a solution this fall though.

[Wolverine 1945]

Originally Posted by dbledan

Hepvo Waterless Valve is the name of the trap replacement.

I think I would rather have good old P traps !!!
With the hepvo I see many possible problems !!!

[dbledan]

Originally Posted by Wolverine 1945

I think I would rather have good old P traps !!!
With the hepvo I see many possible problems !!!

I am not selling them. Never seen them. Just answering questions.

[Rich5117]

I do not run antifreeze thru the water lines. I blow them out, have been doing this method for over 10 years. I then pour antifreeze in the traps, toilet and some into the tanks. I leave my tank valves open so putting a lot in the tank will just run out. Have never had a problem with any freezing.

[Wolverine 1945]

Left my tank valves open once for a couple of days,,, went out to find drain lines full of Maggots !!!

[JayArras]

Originally Posted by Wolverine 1945

Left my tank valves open once for a couple of days,,, went out to find drain lines full of Maggots !!!

Yeah, not a great idea. :thumbsdown:

[llr]

I don't recommend leaving the dump valves open. But if you do someone recently posted a vented cap that would solve the critter issue.

[Scrapper]

Originally Posted by dbledan

Hepvo Waterless Valve is the name of the trap replacement.

How do these work with hair? DW has shoulder length hair and every so often I have to clean the clumps out of the shower drain at both the house and TT. I would think the hair would block them open.

[markb422]

Waterless traps are fairly new to the rv world I believe. They are basically a duck bill check valve. Opens as water passes through, in one direction only, then closes to prevent back flow or gases. used for a long time in other applications. To me, I think they would be trouble free if installed in the vertical but in the horizontal, we will see. Have three in our MH. Two horizontal and one vertical.

[Wolverine 1945]

There probably used because they are probably cheaper than using a P trap ???
Good Luck !!!

[Rich5117]

Regarding leaving tank valves open. After everything is completely drained the cap is reinstalled. No critter or maggot problem.

[backon4]

Originally Posted by w021095

I usually use three to four gallons, depends on the trailer. RV antifreeze is cheaper than fixing a broken water line or valve. Blow out the system through the low point drains, remove the anode​ rod in the water heater, (I put a piece of stainless steel screen in the hole for the anode rod, to keep out the critters)

What’s the reasoning for leaving the anode rod out for winter if the tank was drained? I put mine back in thinking it was ready to go for spring.

[dbledan]

Originally Posted by backon4

What’s the reasoning for leaving the anode rod out for winter if the tank was drained? I put mine back in thinking it was ready to go for spring.

I put mine back in to keep critters out of the tank.

I found a grasshopper in my shower drain from our last campout. He hitched a ride on a bucket I keep in there for travel. Went to the drain looking for water and a way out I guess. I am thinking I will leave him there until DW sees him and screams for me to remove him.

[Scrapper]

Originally Posted by markb422

Waterless traps are fairly new to the rv world I believe. They are basically a duck bill check valve. Opens as water passes through, in one direction only, then closes to prevent back flow or gases. used for a long time in other applications. To me, I think they would be trouble free if installed in the vertical but in the horizontal, we will see. Have three in our MH. Two horizontal and one vertical.

They remind me of the dust boots on diesel farm tractors air filters. Out in the dusty fields they would get packed with fibers from corn stalks and they would stay slightly open until you pulled them off and cleaned them good.

[w021095]

Just a habit, I open the water heater bypass to make sure antifreeze flows through all of the lines and flows out the water heater, have used the same piece of stainless screen on three campers for the last fifteen years.