System Operation Manual
SAT-DN-00434, Rev. B
LOBO
2017-05-16
Page 77 of 86
Copyright
2017 Sea-Bird Scientific. All rights reserved.
11.4.1
Replacing the WQM Bleach (when plumbed with ISUS only)
In the LOBO system, the WQM is normally configured to inject 20
“squirts”
of bleach. This is significantly
(5x) more than the standard WET Labs injection. The idea is to provide additional bleach for protecting
and cleaning the ISUS probe tip. With this configuration, expect the bleach to last 4
–
6 weeks. Therefore,
the bleach should be topped up on each maintenance trip or whenever the batteries are changed.
The approach here differs slightly from that described in the WQM documentation.
1.
Fill a fresh bleach reservoir (a baby bottle) with bleach, and screw the cap on. Top up the bottle
to fill the nipple using a syringe, to remove as much air as possible.
Be extremely careful
; if you
inject too much bleach with the syringe, pressure will build up and the bleach will squirt out of
the bottle. Use appropriate precautions.
2.
Stand the LOBO
on it’s end, as shown.
3.
Remove the two screws holding the cap on the BLIS.
4.
Pour some
fresh
water into the BLIS to ensure that the nipple indentation is filled with water and
that there are no air bubbles. The excess will simply run out.
