Secchi Disk Express - Build one really Fast!
CorkCoast.com
06/06/2013
Karl Grabe
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170 SDC11673 add nut and washer 180 SDC11674 tighted - much 190 SDC11675 second nut to lock first 200 SDC11676 hold lower nut and tighted top washer firmly 210 SDC11677 check tie wrap can't escape
220 SDC11678 check weights dont come off 230 SDC11706 30m or pref 50m tape 240 SDC11707 Carabiner Clip 245 SDC11710 optional use tie wrap to keep tape loop in place 250 SDC11708 check it hangs ok. nb tie wrap missing in this photo
270 SDC11727R done 300 carbineEbay 310 eyeBoltEbay 320 nut 330 tapeEbay