9/16" Stainless Steel Spherical Datum Point
Where a rod monument is to be used for precise vertical measurements, the top section is encased in a grease-filled plastic sleeve, thus isolating the rod from any movements of the surrounding soil. The sand backfill also helps in this process.
A stainless steel datum point is usually used instead of a domed cap and an access cover would usually be fitted to protect the mark.
BMAC6 - Access Cover for 5" & 6" PVC
MSSDP1 - 9/16" Stainless Steel Datum Point
TSS3-Y - 3' Top Security Sleeve w/ endcaps
TSSGREASE - NO-TOX Grease for TSS3-Y
MSS91604 - 9/16" x 4' Stainless Steel Rod w/ Thread
MSS12 - 9/16" Stainless Steel Drive Point