1.2 Changing the dosing tubes
Disconnect power from Bluelab
®
Peripod
™
before
changing the dosing tubes.
Remove the inlet and outlet dosing tubes
from the peristaltic pumps.
M Versions:
Carefully pull the tube connector
out of the peristaltic tubing.
L Versions:
Carefully pull the pH tubes
off the barbs and un-twist the nutrient
connectors.
Discard the tubes you have removed.
Straighten the dosing tubes before connecting.
Bend tube in the opposite direction and
straighten by running through closed fingers.
Each 4 metre / 13 foot length of tube is to be used as inlet and outlet dosing tubes with
connectors. Before cutting, ensure there is enough length for each. Cut the tubing on a 45°
angle. This is important to avoid suction in the adjuster and nutrient solution bottles.
CAUTION
•
Ensure you use the pH dosing tube with the pH adjuster solution. Using the dark nutrient
dosing tube with pH adjuster solution could damage the tube.
1.1 Overview
• Peristaltic pump tubing has a finite life and should be replaced periodically to maintain stable
performance.
• Flush pumps and tubing with water when product is going to be unused for more than one month.
• After storage for long periods, initial set up procedures should be carried out when re-installed.
• If you notice any sudden or significant changes in flow rate, see the troubleshooting guide in
section 5.3 of the Bluelab
®
Peripod
™
Manual, and check for signs of damage or wear.
WARNING
Always flush tubing and pumps with clean water BEFORE performing any maintenance on
pumps or tubing. This ensures that all dangerous chemicals are flushed out of the tubing and
pump, reducing accidental harm or injury.
1
English
2
1.2 Changing the dosing tubes
continued
Set up the inlet dosing tube.
M Version:
Insert the pH dosing tube
connector into the LEFT pH pump
tube.
L Version:
Push one end of the pH
dosing tube over the LEFT pH pump
barb.
Ensure the inlet dosing tube will
reach the bottom of the pH adjuster
container. Cut the inlet dosing tube to
desired length.
Set up the outlet dosing tube.
M Version:
use the remaining dosing
tube with the connector,
and insert the connector into the
RIGHT pH pump tube.
L Version:
Use the remaining dosing
tube and push it onto the RIGHT pH
pump barb.
Cut the outlet dosing tube so that the
tube sits above the maximum solution
level of the reservoir. The pH adjuster
and nutrient solutions must drip into
the nutrient reservoir.
Note:
If the outlet dosing tubes are
immersed in the reservoir it could
create a siphon. This could possibly
cause the solutions to flow into the
reservoir or vice versa.
To set up nutrient tubing and pumps, repeat steps 1-4 using the darker nutrient solution
tubing.
For the L Version:
Insert and twist each connector of the nutrient dosing tube into each
nutrient pump tube connector.
Note:
If pH adjuster or nutrient stock solution being used has solid particles suspended in
it, then a sieve filter should be placed on the end of the tube to prevent tube blockages and
potential damage to the peristaltic pumps.
A suitable sieve filter should suit tubing with 3mm or 1/8in ID for the M version, 8mm or 1/3in
ID for the L version. The filter should be made from a material that is compatible with the pH
adjuster or nutrient stock solution being used.
3
4
5
6
7
1
2
disconnect
power adaptor
L Version
Remove the dosing tubes
M Version
Remove the dosing tubes
Inlet ‘
’
arrow on
pump cover
Inlet ‘
’
arrow on
pump cover
Connector
Left pump
tube
Left pump
barb
Inlet dosing
tube
Inlet dosing
tube
M Version
L Version
Cut tubing
on 45°
angle
Dosing tube reaches
bottom of container
pH
adjuster
Connector
Outlet ‘
’ arrow
on pump cover
Right pump tube
Right pump barb
Outlet dosing tube
M Version
L Version
Nutrient solution
reservoir / tank
Inlet dosing
tube
pH
pump
Nutrient
pumps
Outlet dosing
tube
pH
adjuster
Nutrient pumps
Inlet dosing tubes
Outlet dosing tubes
M Version
L Version
