Pipe options for water storage?

[dirtycontour]

I have two of these:
https://www.northerntool.com/shop/t...MIh8jt3N_22AIVAVYNCh3GDgJdEAEYASAAEgKgP_D_BwE

Freshwater will be on top and saltwater below. Warnings on the containers tell me to stay away from rigid pipes. I'm not sure if I should go with tubing or a flex PVC.

Any thoughts?

 

[dbl]

I'd be curious to know why they warn against using hard plumbing. There a many, many, many of us using these "types" of containers that have them plumbed with good old fashion PVC.

If I had to guess, it's because a more conventional use is having them installed in a manner they would be mobile, hence the built in molding for tie down straps. In your case, they will be stationary and you shouldn't have any issues. My $.02 anyway.

 

[Steve P]

I doesn't seem there would be an issue to using rigid piping, IMHO. What does the warning state?

 

[dirtycontour]

Thanks for looking guys.
This is the warning

And just for fun, these are the containers

 

[dbl]

I will stick with my original comments. If they are stationary, I don't see there being a problem. My $.02 any way.

 

[dirtycontour]

I will stick with my original comments. If they are stationary, I don't see there being a problem. My $.02 any way.

I think the plan is to go tubing on the connections and rigid pvc for the manifold.

 

[cracker]

Could be the containers swell or contract depending on amount of liquid they hold.

 

[TheEngineer]

Sounds like they mean don’t use bulkheads rather something like a uniseal. I’m with @dbl on this. That is most likely for a mobile application not a stationary one.