On Wednesday, July 15, 2020 at 8:36:14 AM UTC-4, Frank wrote:
On 7/15/2020 8:21 AM, philo wrote:
On 7/15/20 6:41 AM, Frank wrote:
On 7/14/2020 10:40 PM, wrote:
On Tue, 14 Jul 2020 19:58:41 -0400, Frank wrote:

On 7/14/2020 4:28 PM, Tekkie? wrote:

On Tue, 14 Jul 2020 10:54:28 -0500, philo posted for all of us
to digest...


On 7/14/20 9:57 AM, Ed Pawlowski wrote:
On 7/14/2020 9:25 AM, philo wrote:
Using some clear flexibleÂ* 1/4" ID PVC tubing for a warm water
jet and
after two months, the inside is getting moldy.


Seems insane. Is there some non-mold flex tubing available anywhere
such as Home Depot?

Run cleaner water or sanitize the tubing periodically.Â* Tubing is
just
providing a place for mold to grow.Â* The spores are in the water.



I think gfretwell has the answer

Maybe you need food grade tubing? Just a WAG.

Would not mean it is mold proof.Â* I see mention of silicone and vinyl
tubing in food grades that still get mold.

If this is algae, it is growing in the water, the tube is just where
you see it. Use opaque tube like PEX and the problem will go away.


Yes and I see they sell black PVC tubing but if you ignore it it may
build up to a blockage.Â* I had this happen on the small PVC drain
piping on my central AC last year.



The only problem with black PVC would be that if algae did grow, I would
not see it.


So I am going back to my original tubing.

It is translucent but not clear, It seems to block enough light as to
prevent growth of algae but if any did grow, it's just clear enough that
that I could see it

I wish I could have seen what was happening in my PVC pipe in the
basement. There is no light in the furnace room to prompt growth and I
go in and check things every couple of days and found water on the floor
instead of in the French drain. The pipe was too clogged to wash out
with bleach and too many bends for a small snake so I had to cut it and
take it apart to clean it.

We still have fan coils lots of places where I work and they do that too. They blow out okay though.