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We would usually set the short blocks aside and keep the for the row with geo grid. Or, you can shim the back side. Unilock had as much as 1/2" of compression on thier pisa 2 walls, and they claimed it was from stacking the walls after they molded them. The more I thought about it, I never made sense out of that arguement. If the width shortened up, then why did the top and bottom stay flat and in shape?
Since all we install here are Keystone, we have not had a short block problem....That may vary however. Keystone uses individual manufacturers to make block. RCP has thier contract here, and they are pretty strict about quality control. The only issue we have had is a pallet or two a year has had stress cracks behind the face, so, we toss them aside, and get a return for credit.
They sell these walls based on thier stackability, and being uniformly manufactured. Short of throwing those pieces aside for returns, there is not much you can do... And, the manufactirers should take them back for credit without a problem.
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Bill Schwab
In the year 1491, if the Naturescape Landscape Company did the site work in Pisa, Italy, they would not be calling it the "leaning" tower.
Encinitas, Ca. 92024
www.naturescapelandscape.com
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