Polaris Back-up Valve Case Kit | 9-100-1202
Polaris
SKU: 9-100-1202
Polaris 9-100-1202 Back-Up Valve Case Kit (White) – Outer Case Replacement for Polaris Vac-Sweep 360 In-Line Back-Up Valve
The Polaris 9-100-1202 is a replacement case kit (outer housing) for the in-line back-up valve used on the Polaris Vac-Sweep 360 pressure-side pool cleaner. The back-up valve helps the cleaner periodically reverse to pull away from corners and obstacles; this part replaces the outer case when it is cracked, leaking, or damaged.
Key Features
- Part Number: 9-100-1202
- Part Type: Back-up valve case kit (outer case / housing)
- Color: White
- Cleaner Compatibility: Polaris Vac-Sweep 360 (verify by your parts diagram)
- Function: Replaces the damaged outer shell so the in-line back-up valve can seal and operate correctly
Important Note on What This Is
- This part is the outer case/housing for the in-line back-up valve.
- It is commonly sold as the case only and may not include internal gears/mechanism (compare to your existing valve before ordering).
- If your valve is not cycling or the internals are worn, you may need a complete back-up valve assembly instead of the case.
Common Reasons to Replace
- Cracks or splits in the housing
- Water spraying/leaking from the valve body
- Loose or damaged hose connection area
- Valve case is warped and won’t seal properly
Installation Notes
- Turn off the pump before disconnecting the cleaner hose.
- Install the new case in the same orientation as the original (match any flow direction markings if present).
- Inspect hose ends and connections for wear while servicing—sun-damaged hose ends can cause repeat leaks.
- After reassembly, run the cleaner and check for leaks at both valve connections.
Related Products
- Search: Polaris 9-100-1202
- Search: Polaris 360 Back-Up Valve
- Search: Polaris 360 Parts
- Search: Polaris 360 Hose Swivels
- Search: Polaris 360 Hose Nuts
- Search: Polaris 360 Feed Hose
- Search: Polaris Wall Fitting Screens
Installation & Maintenance Tips
- Keep the wall fitting screen/filter clean—restricted flow can reduce cleaner power and affect back-up behavior.
- If the cleaner gets stuck often, confirm correct hose length and float placement; improper hose setup can mimic back-up valve issues.
- Inspect hose joints for small sprays—minor leaks can cause a noticeable drop in cleaner performance.
- Store the cleaner and hose out of direct sunlight when possible to slow UV damage to plastics and hose material.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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