Concrete blocks and rock dust/fine mortar for installing semi in ground pool


Well-known member
Oct 31, 2010
Pool Size
Salt Water Generator
1) We are having trouble finding 8" x 16" x 4" concrete blocks for the upright supports for our 30 ft round resin semi inground pool installation (pool will be bu. ried 27") The closest store that shows them in stock is a 2 hour drive. We have 12" x 12" x 2" brick pavers and some 4 " curved retaining wall pavers left over from a fire pit- would either of these provide sufficient support ?

2) Installation instructions calls for rock dust/fine mortar under the bottom brackets. We went to Lowe's yesterday and saw a wide selection of possible products that could be rock dust/fine mortar but no idea which would have been the correct item. (rest assured we will not be doing the installation lol)