In article , Ecnerwal wrote:

When backfilling and compacting, put in 3 inches of backfill and tamp
(compact), before putting in 3 more inches and tamping...if you backfill
all the way and then tamp, the lower parts don't get properly compacted.

Easy way to make a tamper: 6-foot length of 1/2" steel pipe, an empty soup
can, and enough mortar to fill the can.

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Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.