FLOTIDE MFS17 Side Mount Sand Filter User Manual
- June 9, 2024
- FLOTIDE
Table of Contents
FLOTIDE MFS17 Side Mount Sand Filter
FILTER MAX SERIES
Your “Filter Max” Filter is a high performance corrosionproof filter that has
superior flow characteristics that is with the ease of operation. Everything
is made simple from installation, operation to the maintenance of the filter.
Your “Filter Max” filter will be your pool filtration partner that provides
clear water with the least maintenance hassle and care.
BEFORE INSTALLATION BE WARNING SURETOREADA
LLINSTRUCTIONS AND WARNINGS CAREFULLY. KEEP THIS USER MANUAL FOR FUTURE
REFERENCE.
HOW IT WORKS The Filter uses special sand to remove dirt particles from
pool water. Filter sand is loaded into the filter tank to act as the
filtration media. The pool water which contains dirt particles is pumped
through your piping system to the filter via the filter control valve. As pool
water passes through the filter, dirt particles will be caught by the sand bed
and filtered out. The cleaned pool water is returned from the bottom of the
Filter Tank, through the control valve and back to the pool through your
piping system. The entire process is continuous and automatic. It is this
process that provides the filtration and circulation of water in your pool.
With the filtration process, dirt will accumulate and becomes saturated in the
filter tank. Pressure in the tank will increase and the resistance of water
flow will occur. This means it is time to clean (backwash) your filter.
Another indication to know when to clean (backwash) the filter is by checking
the pressure gauge reading. Backwash operation should be performed when the
pressure increases by 10psi above the pressure when it was clean. Typically a
clean filter will run at 10 to 15psi, so take note of the pressure gauge
reading when the filter was installed. When the pressure reaches approximately
20 to 25psi or 50% increase from the clean reading, proceed to the Backwash
operation.
WARNING : turn off the pump before switching the control valve handle
To perform the Backwash operation, position the handle on the control valve to
“Backwash”, the water flow is automatically reversed through the filter so the
water is directed from the bottom of the tank, up through the sand, flushing
the trapped dirt and debris out of the waste line. The duration of the
backwash operation will depends on how dirty your filter is. Check the sight
glass to see when the water becomes clear. It is recommended that the backwash
should be at least 2 minutes long.
Once the backwash operation had been completed, the filter should go through
the process of “Rinse” and then back to “Filter”. To perform the different
operations, position the handle on the control valve as indicated.
INSTALLATION
Installation had been made simple, the only tools needed is a screwdriver and
pipe sealant for plastic. The filter should be installed as close to the pool
as possible, but keep a distance of at least 5 feet (1.5m). Locate the Filter
on rigid, level surface, preferably in a dry, shaded, and wellventilated area.
Prior to installation give consideration to the following: Position of
suction, return, and waste connections. Access for backwashing operation and
servicing; protection from sun, rain, splashing, etc; Drainage of filter room;
Ventilation and protection of the motor.
1/ Place the empty tank in position.
2/ Fill the tank with water to the level that covers the laterals (crepinas),
or about 1/3 of the tank height is recommended. This will avoid damages to the
laterals (crepinas) by the force of the sand when pouring into the filter.
3/ Pour the recommended amount of sand into the tank, making sure that the
centre-pipe remains centred and vertical.
4/ Level the surface of the sand upon completion.
5/ Remove the Sand Fill Cover.
6/ Carefully remove all sand particles from the valve mounting surface.
7/ Place the O-ring into the groove on the tank.
8/ Lower the Multiport Control Valve carefully into position so that its
underside engages with the centre-pipe. Rotate the valve until the inlet is
approximately in line with the pump.
9/ Place the clamp set around the tank and the valve. Secure using the screw
provided.
10/ Firmly tap with a rubber mallet outside of the clamps as you tighten the
screw.
11/ Tighten the screw until the Multiport Control Valve is properly assembled
to create a water tight seal. Do not over tighten.
12/ Install the pressure gauge into the threaded opening on the Multiport
Control Valve.
13/ Install the union sets and the backwash union set.
14/ Connect pump to the control valve opening marked “PUMP”.
15/ Make return to pool pipe connection to control valve opening marked
“RETURN”.
16/ Connect the waste water pipe to the control valve opening marked “WASTE”.
17/ To prevent water leakage, be sure all pipe connections are tight.
18/ Prior to starting the filtration process by turning on the pump, we highly
recommend that you read through the pump instruction manual to ensure proper
installation and to avoid the risk of electric shock.
START-UP PROCEDURE
1/ Be sure the correct amount of filter sand media is in the tank and all
connections have been made and are secure.
2/ Turn the Control Valve handle to the “Backwash” position. Press the handle
downward before turning.
3/ Start the pump according to pump instruction manual (be sure all suction
and return lines are open).
4/ Once water flow is steady out the waste line, run the pump for at least 2
minutes. The initial backwashing of the filter is recommended to remove any
impurities or fine sand particles in the sand media.
5/ Turn the pump off and set the control valve to RINSE position. Start pump
and operate until water in sight glass is clear about ½ to 1 minute. Turn pump
off, set valve to FILTER position and restart pump. Your filter is now
operating in the normal filter mode, filtering particles and dirt from the
pool water.
6/ Take note of the initial pressure gauge reading for future reference.
Variation may occur from pool to pool.
7/ Adjust pool suction and return valves to achieve desired flow. Check system
and filter for water leaks and tighten connections, bolts, nuts as required .
NOTE: During the initial clean-up of the pool water, it may be necessary
to backwash frequently due to the unusually heavy initial dirt load in the
water.
IMPORTANT: To prevent unnecessary strain on piping system and control
valve, always turn off the pump before changing the operation of the control
valve. To prevent damage to the pump and filter and for proper operation of
the system, clean pump strainer (basket) and skimmer basket(s) regularly.
MULTIPORT CONTROL VALVE FUNCTIONS:- FILTER gives downward flow through
the filter bed. This position can also be used for vacuuming.
BACKWASH gives upward flow through the filter bed that removes the dirt
from the sand and carries it to the waste.
WASTE is for pumping water from the pool. It allows the flow from the
pump to bypass the filter and go directly to the waste. You can also use this
position to vacuum heavy concentration of debris.
RECIRCULATE bypasses the filter to circulate water through the pool
system.
RINSE gives a downward flow that settles the filter bed after backwashing and
carries any remaining loose dirt to the waste.
CLOSED prevents only backflow of water from pool during pump maintenance.
To WINTERISE, set the control valve handle in the middle between RINSE and
FILTER. This will allow air to leave or enter the tank to help priming and
draining. Only to be used when the pump is off.
VACUUMING THE POOL
Light Soil: set the control valve to FILTER position. Heavy Soil: set the
control valve to WASTE position.
WINTERRISING
Backwash the filter for at least thirty minutes before closing down the pool
for winterising. This will clean the filter bed thoroughly.
1/ Drain the filter tank by removing the drain cap at the base of the filter
tank. Leave the cap off during winter.
2/ Set the control valve handle between the RINSE and FILTER. This will lift
the handle and help with the draining process by allowing air to enter into
the tank.
3/ Unscrew the pressure gauge from the control valve and store the gauge
indoor.
4/ Drain and winterise pump according to pump instructions.
5/ Repairs should be made during the off-season when the best service is
available, do not leave them until the next season.
TROUBLE SHOOTING
SAND ENTERING THE POOL
Sand too small; Flow too high; Sand bed calcified; Broken Laterals; Loose
centre-pipe; Too much sand; Control Valve not engaged; Air accumulation in
filter.
SAND OUT OF BACKWASH HOSE
Flow too high; Too much sand in tank.
INADEQUATE FILTERING
Dirt build up; improper sand; Sand bed is too low; Algae in filter; Excessive
dirt in pool; Calcified sand bed; Heavy swimmer load; Flow rate too high or
too low; Backwashing cycle too short; Backwash line too small.
SHORT FILTER CYCLE
Dirty filter; Improper sand; Sand bed is low; Algae in filter; Excessive
dirt in pool; Calcified sand bed; heavy swimmer load; Flow rate too high or
too low; Backwashing cycle too short; Channels low; Backwash adapter in wrong
location; Channels in sand.
FILTER LEAKS
Tank cracked; Drain plug not tight; Valve/Tank O’ring damaged.
CONTROL VALVE LEAKS
Handle not properly engaged; Valve/Tank O’ring damaged; Valve cover O’ring
damaged. Pressure gauge O’ring damaged.
ABNORMAL LOSS OF POOL WATER
Leak inside Control Valve; Leakage from pool or piping.
HIGH PRESSURE FILTER
Dirty filter; Calcified sand bed; Return lines too small.
LOW PRESSURE IN FILTER
Control Valve incorrectly set; Pump running too slow (plugged or clogged); Air
leakage into pump suction.
NOTE: If the recommendation in this manual do not solve your particular
problem(s), please contact your local dealer for service.
POOL CHEMISTRY GUIDELINES
SUGGESTED POOL CHEMISTRY LEVELS| ACTION REQUIRED TO CORRECT POOL
CHEMISTRY
---|---
TO RAISE| TO LOWER
PH 7.2 to 7.6| Add Soda Ash| Add Muriatic Acid or Sodium Bisulphate
TOTAL ALKALIN ITY 100 to 130 ppm| Add Sodium Bicarbonate|
Add Muriatic Acid
CHLORINE (UNSTABILIZED) 0.3 to 1.0 ppm| Add Chlorine Chemical| No action-
chlorine will naturally dissipate
CHLORINE (STABILIZED)1.0 to 3.0 ppm| Add Chlorine Chemical| No action-chlorine
will naturally dissipate
CHLOR！NE STAB！LIZER 40 to 70 ppm (Cyanuric Acid)| Add Stabilizer|
Dilution-partially drain&refill pool with water that has not been treated with
Cyanuric Acid.
SPECIFICATIONS
MODEL NO.| MFS, 17| MFS20| MFS24| MFS27A| MFS27|
MFS31A| MFS31| MFS I| .35
---|---|---|---|---|---|---|---|---|---
CODE l| 8ao12e26| 88012’627| 88012628| 88012| ,62| 988012630| 88012631,| |
8,801263.2 i| I a… ao·12s33- –
Effective Filtration Area {SqR)| I 14 I| 0.20| 0| .28| | | 0.39| 0.47| 0.47|
0.61| ‘
0.36
Riter Max Rate (LPM)| 125 I| 175,| 238| 325| 325| 3,73| ,| 373 I| 515
Filler Max Ram (m3 lh)| I 7.5| 10.5| 14.3| | 119.5| 20.3,| 22,.4| 24.7| 30.9
Tumo111erCapacity (In Galloos} -8 Hour| 15840| 22176| 30202| 41184| 42874|
47309| 5216,6
I
| 65261
Turnover Capacity (In Galloos)-1 0Hour| I 19800| 27720| 33752| 51480| 53592|
5’9136| 65| 208| 81576
T1.1mo1JerCepacity (In Gallons) -12.Hour| 23760| 33264| 45302| 61.776| 64310|
70963| 78250| 97871I
All Sand Required (kg)| 40| 70| 125| 185| 185| | 320| 320I| 430
A{:mm)| 670| 760| 825| 946| 946| ‘968| 968| 1| ‘ 086
B(mm)| 425I| 500| 600| 675| 675| 775| 775| 875,
C(mm)| I125| 125| 125| 1| 25| 220| 125| 220| 2 0
D(mm)| 195| 225| 280| 300| 300| 3,70| 370| 440
E(mm)| I 354.5| 396.3| 429.5| 480.0| 527.5| 505.5| 553.0I| 609.0
F(mm)| 417.5 II| 549.3| 492,| .5| ‘ 543.0| 590.5| 568.5| 609.0| 695.0
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