Is perlite an ok alternative to vermiculite for my base (inground vinyl)

[ahreno]

getting my ducks in a row. pool is delviered today.

Vermiculite is a bit expensive here but perlite is cheaper and easier to get. is that an acceptable option?

Whats a good ratio? 4cuft of vermiculite to 98lbs of portland cement seems common? if perlite is acceptable would that ratio hold true?

Also, i found a good deal on "fine" vermiculite. i assume thats not going to be ideal though and it needs to be either medium or coarse

 

[PoolStored]

Vermiculite is the preferred choice...not always available. Vermiculite should be coarse.

Some good resources on perlite for pools, and mixing ratios...

Perlite Insulating Concrete Pool Base for In-ground Vinyl Pools - Perlite Institute

A perlite insulating concrete pool base can substantially reduce heat loss to the ground Perlite ore, when expanded, takes on a low-density cellular

www.perlite.org

SCHUNDLER COMPANY--Perlite Concrete Aggregate for Inground Vinyl Pool Construction

Schundler Pool Guide describing how to use perlite when vermiculite aggregates are not available.

www.schundler.com

 

[ahreno]

Vermiculite is the preferred choice...not always available. Vermiculite should be coarse.

Some good resources on perlite for pools, and mixing ratios...

Perlite Insulating Concrete Pool Base for In-ground Vinyl Pools - Perlite Institute

A perlite insulating concrete pool base can substantially reduce heat loss to the ground Perlite ore, when expanded, takes on a low-density cellular

www.perlite.org

SCHUNDLER COMPANY--Perlite Concrete Aggregate for Inground Vinyl Pool Construction

Schundler Pool Guide describing how to use perlite when vermiculite aggregates are not available.

www.schundler.com

thank you.

i can get vermiculite i guess. it's $400 more expensive than perlite. just spend the difference huh? $1400 vs $1800

 

[PoolStored]

i can get vermiculite i guess. it's $400 more expensive than perlite. just spend the difference huh? $1400 vs $1800

Vermiculite would be the better choice.