Intex replacement pump looks different than original. I want to be sure that the gallons per hour is at least as much as the original. Not stated on box that new pump came in.

It is a pump, only motors are measured in Horsepower. I would expect the HP of this above ground combined pump and filter is so low they would be embarrassed to state. It is measured in Gallons Per Hour flow rate.

https://www.google.com/search?q=Intex+673R+pump+specs

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I am not an expert on your particular Intex model ...

I believe your pressure readings are with in normal parameters. Is your water clean?

Is it balanced? Your goals should be Alkalinity of 100 (no less than 80 and no more than 120, pH should be 7.4 (but no less than 7.0 and no more than 7.8) and your chlorine should be 5 ppm. I recommend a DPD test kit Cyanuric Acid should be about 50 but no less than 40 and no more than 80. Cyanuric Acid is also called stabilizer. Its function is to protect the chlorine you are making in your cell. Refer to your owners manual for how much salt you should have in your pool. 3200 ppm salt is a window to shoot for. You can get a test kit for salt. Salt, like calcium, is persistent in the water. The only way salt and calcium get out of the pool is through back washing, splash out and what you carry off with your swimming attire. Chlorine is affected by the sun and materials introduced into the water by the swimmers as well as what jumps, falls or hops into the pool. pH is not necessarily affected by the sun but the other factors do come into play. A properly balanced pool (alkalinity-wise) will not have pH "bounce". If your pH is bouncing, that is an indicator that your alkalinity is out of whack.

If your pool is 4 feet deep, you have about 8,640. Your goal should be for a 8 hour turn over rate (your pump should be pumping no fewer than 1,120 gallons per hour). BTW, studies show that if you run your pump 24/7 with a 8 hour turn over rate, it still takes up to 5 days for every drop of water in your pool to actually pass through the sand.

You could install a flow meter in your return line. It is simple to do - drill a hole in the return line and attach the meter. Rule of thumb - a 1.5 hp motor (probably bigger than yours) will move about 50 to 70 gallons per minute through a 1/5 or 2.0 pipe. A 2 HP motor will move between 60 and 80 gallons per minute through a 2 inch pipe (and filter, of course). Get a flow meter at your full service pool supplier. It will come with full particulars.

With a clean filter (note the pressure) you should back wash when the pressure increases by about 10 PSIG (Pounts Per Square Inch on the Gage) from the pressure when clean.

I hope this information helps you ...

Thanks for your question @ FixYa.com

In the absence of information to the contrary, longer is better. If you can run 24/7 all the better. Your filter will clean your water and your chlorinator will keep a constant supply of chlorine going into the pool.

I suggest you use stabilizer (Cyanuric Acid) in your pool ... the proper level is between 50 and 80 ppm. The Cyanuric acid protects the newly made chlorine from the effects of the UV from the sun.

How much water are you moving per hour? In a perfect workd, you will have a 8 hour turn over, i.e. your pump will move the 16,000 gallons in and out of the pool in 8 hours or less. The more swimming that is going on the longer you should run the pump ... again in the absence of information to the contrary.

Thanks for your question @ FixYa.com

Do you have the auto-circ recirculation pump with timer?
If so, here is manual for that specific product:
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http://waterheatertimer.org/Auto-circ-manual.pdf
Manual gives instructions for a different timer dial than timer than shows on unit, so they must come with different dials.

Instructions say pegs pulled out = timer on
Conversely, pegs pushed in = timer off
You might be able to hear the pump operating to see if these instructions are correct for your recirculation timer. The kids would love a listening assignment under the sink.

To see images showing how recirculation system operates:
http://waterheatertimer.org/Water-heater-recirculation-system.html

Setting times:
Try 1/2 hour ON in morning and 1/2 hour ON in evening. Warm water will stay in pipe for a while.

Recirculation system with timer costs $10-17 per year to operate, assuming timer runs 1 hour per day with electric prices at 10 cents per kilowatt hour. Operation cost is straight line ... so if timer runs 2 hours per day, cost is $20-34 per year at 10 cents per Kwh.

Water saved might equal 5 gallons per day, or 1825 gallons per year depending on usage. Average water wasted waiting for hot water is 1/2- 2/3 gallon depending on length of pipe. Set a bucket under spigot to test your home when circulation system is not ON.

Cost of water depends on local billing rate. The municipality saves purifying water, pumping water to your home, and finally pumping and processing sewage drainwater.

If you are on a water well, the pump electricity from saving 2000 gallons a year is a dollar or two per year since water well generally consumes less than 1Kwh per day for ordinary house.

Get replacement ports of the proper size from your pool supply house. Dont use adapters as this constitutes a restriction and will lead to troubles. If you cannot find the correct diameter - I suggest you add a second suction and a second discharge of the size you can get and pipe them together outside the pool ... put the two suctions/dischargees on a pipe that will fit your new pump.

hello,
who are we to say the flow is fine? there is no way of putting your hand to the discharge tube and being able to calculate gallons per hour coming out
Start by removing your flow sensor and wiggling it back and fourth
now spray it hard with a garden hose.
Also do this with your electro cell but no vinegar this time.
Put it back together
now blow your cartridge out spray hard between every fold top to bottom this should really be done every day with these cheap intex pumps

make sure you have your bleeder knobs open slightly
turn on pump and after a minute or so close them back up
This should do the trick for you

first off water should not be getting to the armature area. be carefull with how you are taking care of your pump.
secondly a 1500 gallon pump is very weak I would advise at least 2500 or even the intex 4000
the most important part of pool maintenance is circulation.

if you have time check into electric motor rebuilding in your area
but sometimes that is more expensive than buying new

also if you have a valid receipt and the pump is less than 90 days old call intex and they will send out a new one within 24 hours
good luck

The best solution to this problem not to find a replacement intex pump/filter. I suggest getting a system with a 50 square foot cartridge filter and a 3/4 hp pump such as hayward or pentair offers. You will be amazed at the difference a little quality can make.