Intex Krystal Clear 637R

Questions and Answers

B
Brooke AndersonAug 18, 2025
How to improve the cleaning performance of my Intex Swimming Pool Filter?
- A
  Alexandra Morales DVMAug 18, 2025
  If your Intex Swimming Pool Filter isn't effectively cleaning the pool, several issues could be the cause. Start by adjusting the chlorine and pH levels. Clean or replace the filter cartridge if it's dirty, and check for holes or damage, replacing it if necessary. For an excessively dirty pool, operate the filter for longer periods. Also, ensure the strainer screen at the inlet is clean to avoid restricting water flow.
F
fmeyerAug 20, 2025
What to do if my Intex Swimming Pool Filter pump isn't working?
- J
  Jennifer HooverAug 20, 2025
  If your Intex Swimming Pool Filter pump isn't working, there are several things to check. First, ensure the water level is correct. Next, clean the strainer screens at the pool inlet. Also, check the intake hose for air leaks and tighten the hose clamps, inspecting the hose for damage. Clear any sticks or leaves in the intake hose. Finally, open the release valve at the top of the pump to release any air lock inside the cartridge chamber.
M
Mary TurnerAug 23, 2025
How to remove sediment on the bottom of my Intex swimming pool?
- S
  Shawn MyersAug 23, 2025
  Sediment on the bottom of your pool is often due to heavy use. Use an Intex pool vacuum to clean the bottom of the pool.
D
davidhopkinsAug 26, 2025
How to deal with surface debris in my Intex swimming pool?
- R
  Randy HunterAug 26, 2025
  If you have surface debris in your pool, it might be because the pool is too close to trees. Use an Intex pool skimmer.
S
Sandra LewisAug 27, 2025
What to do if my Intex Swimming Pool Filter motor fails to start?
- T
  Tammy BakerAug 27, 2025
  If your Intex Swimming Pool Filter motor won't start, there are a few potential reasons. First, ensure the filter cord is plugged into a 3-wire outlet protected by a Class A Ground Fault Circuit Interrupter. If it is plugged in, check if the GFCI circuit breaker has tripped and reset it. If it repeatedly trips, there may be an electrical defect requiring an electrician. Lastly, the motor might be too hot; allow it to cool down.
K
Karen AlexanderAug 30, 2025
Why is the water flow very slow in my Intex Swimming Pool Filter?
- J
  Jessica LopezAug 30, 2025
  If your Intex Swimming Pool Filter isn't pumping water or the flow is very slow, several factors could be responsible. Check for clogs in the inlet or discharge and clear any obstructions in the intake hose. Also, inspect the intake line for air leaks, tightening hose clamps and checking for damage. Scale buildup on the cartridge can also restrict flow, so replace the cartridge if necessary. Ensure that the nozzle is at the upper position of the pool inlet and the strainer is at the lower position of the pool outlet. Finally, clean the filter cartridge more often, especially if the pool is excessively dirty.
J
John EllisSep 1, 2025
Why is the hose leaking on my Intex Swimming Pool Filter?
- M
  mstewartSep 1, 2025
  If the hose on your Intex Swimming Pool Filter is leaking, it could be due to several reasons. Ensure the hose clamps are well-fitted by tightening or reinstalling them. Check if the hose o-ring dislodged when connecting the hose, and if so, put it back into the groove. If the hose is broken, replace it.
M
Mr. Brian BoydSep 4, 2025
What causes the top cover of my Intex Swimming Pool Filter to leak?
- M
  Miss Samantha GonzalezSep 4, 2025
  If the top cover of your Intex Swimming Pool Filter is leaking, it could be due to a missing O-ring; remove the cover and check for it. Alternatively, the cover or air release valve might not be tight enough; manually tighten the cover or valve.
S
Susan DeanSep 7, 2025
How to fix an air lock in my Intex Swimming Pool Filter?
- A
  Angela LopezSep 7, 2025
  If there's an air lock in your Intex Swimming Pool Filter, it means air is trapped in the pump housing and inlet hose. To resolve this, open the air release valve, then lift and lower the inlet hose until water starts flowing out of the air release valve. Once water flows, close the air release valve.
R
Rhonda YoungSep 9, 2025
What causes suspended matter in water filtered by my Intex Swimming Pool Filter?
- W
  williamrobinsonSep 9, 2025
  If you notice suspended matter in the water filtered by your Intex Swimming Pool Filter, it could be due to "hard water" caused by a high pH level; correct the pH level, consulting your pool dealer for advice. Another cause could be low chlorine content, so adjust the chlorine level accordingly. It may also be caused by foreign matter in the water, so clean or replace your filter.

Summary

Important Safety Rules

Parts Reference

Setup Instructions

Cleaning or Replacing Filter Cartridges

Instructions for removing, cleaning, and reinserting the filter cartridge.

Pool Care and Chemicals

Long Term Storage

Troubleshooting Guide

Common Pool Problems

General Aquatic Safety

Limited Warranty

Intex Krystal Clear 637R Specifications

General

Type	Cartridge Filter Pump
Hose diameter	1.25 inches
Input voltage	110-120V
Filter type	Cartridge
Filter cartridge type	Type A
Flow Rate	1500 GPH
Horsepower	0.33 HP