Deer run 250 membranes storage

[TRAILGUY]

I got Daves updated manual. Next year I want to remove the membranes (2- 4 inch). Never removed always stored in RO. What size do I make the storage tubes. Any tips or parts I need to replace? Thanks Dave for your info. Drips a little under tower may be condensation?

[maple flats]

Might be condensation or a leak. When you get the drips is the outside of the canister sweaty? When you are almost finished with the wash cycle (hot water at up to 113F) when the canister should not be sweating, do you still get drips?
For the canisters, I made some that store my extra membranes (for just in case) out of 4" PVC pipe. On one end I glued a cap, best if it has a flat face rather than a dome shape. On the other end I just have a 4" slip (glue) x 4" female adapter and into that I screw a threaded plug. Make the length of the pipe at 48". Test it for leaks before using it. When you get the cleaned membrane in the tube, fill it with the proper mixture of either membrane preservative or membrane antifreeze. Then screw the plug in. Store it upright or the plug might leak and let the membrane dry out at one end.
To reinstall, make sure the U shaped seal is in good condition and the the open side of that seal faces the membrane, not away from it. Replace if necessary. When installing the membrane carefully ease it in and make sure the lower lip of that U shaped seal goes in without deforming. Then put the plug back into the canister, tap as needed to seat it using a rubber hammer, mallet or other non metal hammer, or use a block of wood and gently tap on that to seat the slide in plug. Then put the clamp on and tighten.

[Pete S]

Excellent! Will be pulling my membrane today and the directions DO NOT tell you that the membrane needs to be immersed when stored.

It would make sense,...... but again THANK YOU!

[ecolbeck]

Might be condensation or a leak. When you get the drips is the outside of the canister sweaty? When you are almost finished with the wash cycle (hot water at up to 113F) when the canister should not be sweating, do you still get drips?
For the canisters, I made some that store my extra membranes (for just in case) out of 4" PVC pipe. On one end I glued a cap, best if it has a flat face rather than a dome shape. On the other end I just have a 4" slip (glue) x 4" female adapter and into that I screw a threaded plug. Make the length of the pipe at 48". Test it for leaks before using it. When you get the cleaned membrane in the tube, fill it with the proper mixture of either membrane preservative or membrane antifreeze. Then screw the plug in. Store it upright or the plug might leak and let the membrane dry out at one end.
To reinstall, make sure the U shaped seal is in good condition and the the open side of that seal faces the membrane, not away from it. Replace if necessary. When installing the membrane carefully ease it in and make sure the lower lip of that U shaped seal goes in without deforming. Then put the plug back into the canister, tap as needed to seat it using a rubber hammer, mallet or other non metal hammer, or use a block of wood and gently tap on that to seat the slide in plug. Then put the clamp on and tighten.

Once the membrane is stored in the tube where to you place it in the off season? Do you try to keep in in a cool place like your basement or does that not really matter?

[Pete S]

I just tried to put my membrane in the 4" PVC pipe,................................ IT IS TIGHT! Is it advisable to "push" it in? I am not real sure about that as there are various edges from the fittings. HELP!

[maple flats]

I'm not sure what might be different, but my 4" membranes go in and out easily. Must be your adapter coupling from 4" slip (glue) to 4" female thread is somehow different, it should not be tight.
Once the membrane is in the storage tube, add a mixture of water with the right ratio of preservative in it and fill to the top, just below the threads, then store it upright in a cool dry place, I keep mine in the cellar.

[wiam]

I just tried to put my membrane in the 4" PVC pipe,................................ IT IS TIGHT! Is it advisable to "push" it in? I am not real sure about that as there are various edges from the fittings. HELP!

Did you take the u cup seal off? I had to do that with my 4” membranes. I used fernco caps for ends on my home built storage vessels.

[Father & Son]

I got Daves updated manual. Next year I want to remove the membranes (2- 4 inch). Never removed always stored in RO. What size do I make the storage tubes. Any tips or parts I need to replace? Thanks Dave for your info. Drips a little under tower may be condensation?
The drip I have on my 250 comes from the top of the membrane canister where the street elbow screws in. I need to pull it out and put new Teflon tape on it.

[Super Sapper]

Schedule 80 (Gray) PVC will have a smaller inside diameter than schedule 40 (white).

[maple flats]

The drip I have on my 250 comes from the top of the membrane canister where the street elbow screws in. I need to pull it out and put new Teflon tape on it.
Be careful using teflon tape on plastic parts. It is too easy to over tighten with the teflon and stress the female thread. Use it cautiously or use a good fluid pipe thread dope. However if the female thread is metal, the tape is a good choice. (I was a plumber in a previous life, furnaces not sewer)