Hayward S310T2 User manual

OWNER’S MANUAL
INSTALLATION, OPERATION & PARTS
MODELS S310T2, S360T2,
PRO™SERIES HIGH-RATE SAND FILTERS
SAVE THIS INSTRUCTION MANUAL
IS310T2-06
Rev. B
Basic safety precautions should always be followed, including the following: Failure to follow instructions can cause severe
injury and/or death.
This is the safety-alert symbol. Wh en you see this symbol on your equipment or in this man ual, look for one of the
following signal words and be alert to the potential fo r p ersonal inj ury.
WARNING warns about hazards that could cause seriou s personal in jury, death or major proper ty d amage and if
ignored presents a potential hazard.
CAUTION warns about hazards that will or can cause minor or moderate personal injury and/or property damage
and if ignored presents a potential hazard. It can also make consumers aware of actions that are unpredictable and unsafe.
The NOTICE label ind icates special in structions that are important but not related to hazards.
HAYWARD POOL PRODUCTS, INC.
620 Division Street Elizabeth, NJ 07207 Tel: [phone]
WWW.HAYWARDPOOL.COM
Use only High Rate Sand No. 20 Silica Sand (.45mm - .55mm)

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WWW.HAYWARDPOOL.COM USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
WARNING – To avoid dangerous or fatal electrical shock, turn OFF power to motor before working on electrical connections.
WARNING – Failure to bond pump to pool structure will increase risk for electrocution and could result in injury or death. To reduce the
risk of electric shock, see installation instructions and consult a professional electrician on how to bond pump. Also, contact a licensed electrician for
information on local electrical codes for bonding requirements.
Your Hayward Pro Series high-rate sand filter is a high
performance, totally corrosion-proof filter that blends superior
flow characteristics and features with ease of operation. It
represents the very latest in high-rate sand filter technology. It
is virtually foolproof in design and operation and when
installed, operated and maintained according to instructions,
your filter will produce clear, sparkling water with only minimal
attention and care.
HOW IT WORKS
Your filter uses special filter sand to remove dirt particles from
pool water. Filter sand is loaded into the filter tank and
functions as the permanent dirt removing media. The pool
water, which contains suspended dirt particles, is pumped
through your piping system and is automatically directed by the
patented filter control valve to the top of the filter tank. As the
pool water is pumped through the filter sand, dirt particles are
trapped 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 the piping system.
This entire sequence is continuous and automatic and provides
total recirculation of pool water through your filter and piping
system.
After a period of time, the accumulated dirt in the filter causes
a resistance to flow, and the flow diminishes. This means it is
time to clean (backwash) your filter. With the control valve in
the backwash position, the water flow is automatically reversed
through the filter so that it is directed to the bottom of the tank,
up through the sand, flushing the previously trapped dirt and
debris out the waste line. Once the filter is backwashed
(cleaned) of dirt, the control valve is manually resequenced to
Rinse, and then Filter, to resume normal filtering.
INSTALLATION
Only simple tools (screwdriver and wrenches), plus Teflon tape
manufactured for plastic adapters, are required to install and/or
service the filter.
1. The filter system should be installed, not more than 6 feet
above pool water level, on a level concrete slab, very firm
ground, or equivalent, as recommended by your pool
dealer. Position the filter so that the piping connections,
control valve and winter drain are convenient and
accessible for operation, service and winterizing.
2. Assemble pump and pump mounting base, No.
S160TPAK1, or S160TPAK3 (if supplied) to the filter
according to instructions packed with the base.
3. Loading sand media. Filter sand media is loaded through
the top opening of the filter.
a. Loosen flange clamp and remove Filter Control Valve (if
previously installed).
b. Cap internal pipe with sand shield to prevent sand from
entering it. Be sure pipe is securely in place in bottom
underdrain hub.
c. We recommend filling tank approximately 1/2 way with
water to provide a cushioning effect when the filter sand
is poured in. This helps protect the underdrain laterals
from excessive shock. (Be sure the winter drain cap is
securely in place on drain pipe).
NOTE: Check to confirm all laterals are in the down
position before loading with sand. (See Figure A.)
d. Carefully pour in correct amount and grade of filter
sand, as specified on Table 1. (Be sure center pipe
remains centered in opening). Sand surface should be
leveled and should come to within 6" of the top of the
filter tank. Remove sand shield from internal pipe.
4. Assemble Filter Control Valve to filter tank.
a. Loosely pre-assemble both halves of the clamp with one
screw and one nut, turning the nut 2 or 3 turns. Do not
tighten. Wipe filter flange clean.
b. Insert Filter Control Valve (with valve/flange 0-ring in
place) into the tank neck, taking care that the center pipe
slips into the hole in the bottom of the valve. Install clamp
around tank and valve flange and assemble second screw
and nut. Tighten just enough so that the valve may be
rotated on tank for final positioning.
c. Wrap two turns of Teflon pipe sealant tape manufactured
for plastic pipe on the ¼” NPT male end of gauge.
Carefully screw pressure gauge, into 1/4"NPT tapped
hole in valve body. Do not over tighten.
d. Connect pump to control valve opening marked PUMP
according to instructions. After connections are made,
tighten valve flange clamp with screwdriver, tapping
around clamp with screwdriver handle to help seat valve
flange clamp.
5. Make return to pool pipe connection to control valve
opening marked RETURN and complete other necessary
plumbing connections, suction lines to pump, waste, etc.
6. Make electrical connections to pump per pump instructions.
7. To prevent water leakage, be sure winter drain cap is
securely in place and all pipe connections are tight.

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WWW.HAYWARDPOOL.COM USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
REQUIRED CLEARANCE MEDIA REQUIRED
EFFECTIVE
FILTRATION
AREA
MAXIMUM
WORKING
PRESSURE SIDE ABOVE TYPE AMOUNT
MODEL
NUMBER FT2M
2PSI BAR INCH MM INCH MM FILTER
SAND**
LBS KG
S310T2 4.9 .46 50 3.45 18 460 18 460 0.45-0.55mm 500 230
S360T2 6.5 .60 50 3.45 18 460 18 460 0.45-0.55mm 700 320
**Also known as No. 20 Silica Sand.
SPECIFICATIONS
FIGURE B
TABLE 1
PARTS
Models S310T2, S360T2
REF
NO
PART
NO.
DESCRIPTION NO.
REQ
1 SP071620T Vari-Flo XL Control Valve 2” 1
2 ECX270861 Pressure Gauge 1
3 GMX600F Valve/Tank O-ring 1
4 GMX600NM Flange Clamp 1
5 SX202S Sand Shield –2004 Corrugated
Design
1
6a
6b
SX310DA2
SX360DA
Folding Lateral Assy S310T2
Folding Lateral Assy S360T2
1
1
7a
7b
SX310AA1
SX360AA1
Filter tank Assy less valve & clamp 1
8a
8b
SX310HA
SX310HN
Lateral (Screw in) Prior to 2005
Lateral (One piece)
10
10
9a
9b
SX108HG
SX180LA
Drain Cap Kit (Round)
Drain Cap Assy
1
1
10 SX310J System Base 1

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PROBLEM SOLVING LIST
LOW WATER FLOW SHORT FILTER CYCLES
POOL WATER WON'T CLEAR UP
REMEDY 1. Check skimmer and pump 1. Check for algae in pool and 1. Check chlorine, pH and total
strainer baskets for debris.
2. Check for restrictions in
intake and discharge lines.
3. Check for air leak in intake
line (indicated by bubbles
returning to pool).
4. Backwash filter.
superchlorinate as required.
2. Be sure chlorine and pH
levels are in proper range
(adjust as required).
3. Check surface of filter sand
for crusting or caking
(remove 1 " of sand if
necessary).
alkalinity levels and adjust
as required.
2. Be sure flow rate through
filter is sufficient.
3. Operate filter for longer periods.
4. Be sure Vari-Flo valve is set
on "Filter" position.
POOL CHEMISTRY GUIDELINES
ACTION REQUIRED TO CORRECT POOL CHEMISTRY
SUGGESTED POOL CHEMISTRY LEVELS
TO RAISE TO LOWER
pH 7.2 to 7.6 Add Soda Ash Add Muriatic Acid or Sodium Bisulphate
TOTAL ALKALINITY 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
CHLORINE STABILIZER 40 to 70 ppm
(Cyanuric Acid) Add Stabilizer Dilution - partially drain & refill pool with water
that has not been treated with Cyanuric Acid.
DATE OF INSTALLATION ____________________
PURCHASED FROM _______________________
MODEL _______________ SERIAL NUMBER _______________________
▲Retain this Warranty Certificate in a safe and convenient location for your records.
MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY PIPE SIZE
Pipe Size
[mm]
Flow rate
GPM [Liter/Min]
Pipe Size
[mm]
Flow rate
GPM [Liter/Min]
Pipe Size
[mm]
Flow rate
GPM [Liter/Min]
1”
[32]
20
[75]
1 ½”
[50]
45
[170]
2 ½”
[75]
110
[415]
1 ¼”
[40]
30
[110]
2”
[63]
80
[300]
3”
[90]
160
[600]
TABLE 2
PRODUCT REGISTRATION
(Retain For Your Records)

Page 7 of 8 MODEL S310T2, S360T2T IS310T2-06 Rev B
WWW.HAYWARDPOOL.COM USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
▼DETACH HERE: Fill out bottom portion completely and mail within 10 days of purchase/installation.
© Hayward Pool Products, Inc. 2006
All rights reserved.
------------------------------------------------------------------------------------------------------------
Mail to: Hayward Pool Products, Inc., 620 Division Street, Elizabeth, NJ 07207, Attn: Warranty Dept.
Warranty Registration Card
Name__________________________________________________ Years pool has been in service □less than 1 □1-3 □3-5 □5-10
Address________________________________________________ Purchased from:
City______________________ State_________ Zip____________ Company name________________________________________________
E-mail Address__________________________________________ Address_______________________________________________________
City__________________________ State_________ Zip_______________
Product Purchased ______________________________________
Product Serial No. _______________________________________
Please send me more information on these other
□New Installation □Replacement products from Hayward:
Type of In-Ground Pool: □Pump □Filter □Automatic Pool Cleaner □Light
□Vinyl □Fiberglass □Gunite □Chlorinator □Skimmer □Heater □Heat Pump
□Salt/Chlorine Generator □Controls
Size of Pool______________________________________
HAYWARD®LIMITED WARRANTY
This equipment was inspected before shipment from our plant. To original purchasers of this equipment,
Hayward Pool Products, Inc., 620 Division Street, Elizabeth, New Jersey, warrants its products free from
defects in materials and workmanship for a period of ONE (1) year from the date of purchase.
Parts which fail or become defective during the warranty period, except as a result of freezing, negligence,
improper installation, use, or care, shall be repaired or replaced, at our option, without charge, within 90 day s of
the receipt of defective product, barring unforeseen delays.
To obtain warranty replacements or repair, defective components or parts should be returned, transportation
paid, to the place of purchase, or to the nearest authorized Hayward service center. For further Hayward dealer
or service center information, contact Hayward customer service department. No returns may be ma de directly
to the factory without the express written authorization of Hayward Pool Products, Inc.
To original purchasers of this equipment, Hayward Pool Products, Inc. warrants its vacuum release systems to
be free from defects in materials and workmanship for a period of ONE (1) year from the date of purchase.
Filters which become defective during the warranty period, except as a result of freezing, negligence, improper
installation, use or care, shall be repaired or replaced, at our option, without charge.
All other conditions and terms of the standard warranty apply.
Hayward shall not be responsible for cartage, removal and/or reinstallation labor or any other such costs
incurred in obtaining warranty replacements.
The Hayward Pool Products warranty does not apply to components manufactured by others. For such
products, the warranty established by the respective manufacturer will apply.
Some states do not allow a limitation on how long an implied warranty lasts, or the exclusion or limitation of
incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.
Hayward Pool Products, Inc.
620 Division Street
*Supersedes all previous publications. Elizabeth, NJ 07207

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WWW.HAYWARDPOOL.COM USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
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