How to Change Seals on a Pentair Dynamo Pool Pump!

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In this video, Mark shows you how to change seals on your Pentair Dynamo above ground pool pump.
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Video Timestamps
00:00 - Intro
00:45 - Separating the system
01:26 - Changing seals
08:28 - Putting everything back together
13:19 - Thanks!
Video Links:
1.5" threaded plug w/ oring: hallmarkpoolsupplies.com/p-8576-15-gry-mpt-plug-w-oring.aspx
Shaft seal: hallmarkpoolsupplies.com/p-3871-354545s.aspx
Impeller: hallmarkpoolsupplies.com/p-3834-355122-1hp.aspx
O-ring: hallmarkpoolsupplies.com/p-3723-273062-slide-valve.aspx
Seal plate o-ring: hallmarkpoolsupplies.com/p-3807-354634-dynamo.aspx
Jacks Lube: hallmarkpoolsupplies.com/p-8733-jacks-formula-327-multilube.aspx

Опубликовано:

7 июн 2022

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Комментарии : 51

@bonniehornick2617 Год назад

73 year young lady here just follow your video and now my pump is back to new. Thanks great video

@pvf1799 Месяц назад

This is THE BEST instructional video I’ve ever watched. We have the same pump and motor under the SPARCO brand. Thank You!

@heatheraldridge2047 Месяц назад

E A S Y !!! Fixed my pump with the parts I found in the links you provided!! Thank you, thank you!!

@danielduncan7979 2 месяца назад

Thank you for your help. This video helped me compete the job this morning.

@valerieeubanks1894 Год назад

Mark, thank you for this video. I had trouble with my 7/16th wrench because it was too thick. But, found another one in tool box that was thiner. Made all the difference.

@terryreese9272 Год назад

Thank you for the video. Very easy after watching.

@GDOG5K2003 Год назад

Great video! Thank you!

@blackhorse2947 2 года назад

Great information, I had to do this last year……….THX

@richardbrust9852 Год назад

Thanks for info Mark, never new the flats were available on shaft my 2nd. Time to replace seal. The first time I used a thin channel lock to hold shaft. Tried using the nut driver to loosen the long bolts to front of mtr. I put as much tork as I dared but was afraid of twisting them off so I did what is not recommended and used a thin blade screw driver to remove ceramic seal. My pump is 12 plus years old and weathered. Thanks again

@woohoo2you966 Год назад

Great video! Huge help!!!!

@davidwi4l126 2 месяца назад

Thanks for the video..-.

@alveyjohn Год назад

This is EXACTLY what I needed to know and see. Thank you.

@nickglorioso6266 2 года назад

Great love it

@electronicamahesa1118 Год назад

Excelente explicación me sirvió de mucha ayuda

@jskweres2 Год назад

Thanks so much. My housing was loose and I didn't realize it screwed back on

@creigcooper6483 2 года назад

Perfect content! Thanks so much. I need to replace the switch on mine as well; could you tell me where to find one? Local pool shop said I was out of luck.

@HallmarkPoolSupplies 2 года назад

I have the switch available on our website. Here's the link if you would like to order it. hallmarkpoolsupplies.com/p-17698-dynamo-onoff-toggle-switch.aspx

@conniestanley8225 10 месяцев назад

Great video! I had trouble finding one with this kind of pump. My pump motor gave up the ghost. I have purchased a new motor, ring & seal kits and an impeller while I was at it. With great difficulty (my pump is plumbed with pvc and I didn't want to remove the entire pump thus requiring re-plumbing) I removed the workings from the pump housing back & electrical and brought it inside like you. I have removed all but the diffuser bracket. At some point, the motor got wet because the nuts and rods holding the diffuser bracket in place must have rusted. When I attempted to remove the rods, they simply broke off and the diffuser bracket is stuck to the old non-working motor. Is there any recovery from this or do I simply need to replace the diffuser bracket as well? (Seems now buying a new pump entirely would have been easier and with piecemeal purchases of replacement parts, maybe cheaper. Ugh!) Thanks in advance for your help.

@HallmarkPoolSupplies 10 месяцев назад

Spray the broken rods with WD-40 and let it set for a little bit. This should help, however you have to get all 4 rods out. If you can not get all the rods out then you will have to replace. Thanks for watching.

@dwdrummer97 Год назад

Excellent content. Got our pool in 2020 with this motor. After only about 1.5 months it started making a very loud noise. We were lucky enough to get an entire new pump from our pool company because it was so new. Now, after running the new one for one season it is doing the same thing. They work fine, but the noise is too much. Do you think its from this seal set rubbing together? Maybe bearings? I cant see bearings running out so soon. Anyway, I have a spare so I can do what you have shown here without risk. Just curious if you know why these get louder?

@HallmarkPoolSupplies Год назад

What you are describing sounds like bearings, when the bearings in a motor go out the motor will run very loud. You can have your motor repaired at a local motor repair shop or replace the motor. Get an estimate first, sometimes it’s better to replace than repair. Thanks for watching.

@dwdrummer97 Год назад

@@HallmarkPoolSupplies I have 2 of these so I am willing to play around a bit to restore the first one and then move to the other. Do you know what bearings this motor takes? I’m guessing a shop that does starter or alternator repair could put on new bearings after I get the motor out. After all, it is just a stator more or less. Thx

@gmontenegro9711 3 дня назад

This is kind of a silly question but for the basket in the pump, do you need to turn it in order to remove the basket or does it just pull right up and out? I tried to remove it just by pulling it straight up and that was a no go. Tried twisting at the handle, counter clockwise, but still a no go.

@HallmarkPoolSupplies 3 дня назад

@@gmontenegro9711 The basket just pulls out. Thanks for watching.

@nard0q695 2 года назад

hi, i have 20'x40' inground vinyl liner about 4' to 14' deep. we r not planning to use the pool this summer. & we already removed the old liner . is it OKAY to leave the pool empty the whole year ? we live in NJ btw. we r planning to use the pool next summer. thanks in advance

@HallmarkPoolSupplies 2 года назад

It would be best to not leave it empty. I would put a new liner in the pool sooner than later.

@rreg0321 Год назад

The video is great but for whatever reason the replacement seal doesn’t fit all the way on the impeller shaft. I ordered part 354545S but it doesn’t fit over the ridges at the base. . Wondering if there’s a different seal part for my Pentair Dynamo pump

@HallmarkPoolSupplies Год назад

The seal set you have is correct, it sounds like you don’t have the old seal removed completely. Sometimes part of the seal on the end gets stuck on the impeller shaft, it looks like an o-ring. If you remove, the seal will go all the way down. Thanks for watching.

@rreg0321 Год назад

I replaced correctly replaces the seals but it’s still leaking at hi speed. Do I need to replace the O ringer too. They look fine but the difusser O ring is loose and falls out. Could that need to be replaced? Thank you

@HallmarkPoolSupplies Год назад

If you replaced the seal set properly, then I would check all o-rings for damage. If an o-ring is questionable you can replace. I would also make sure that nothing is cracked.

@jamesconn1104 10 месяцев назад

Thank You Sir , i need to separate the filter basket from the pump , my oring is leaking , i have air going in when i turn the pump off its like back pressure pushed the filter basket away from the pump, i notice lot of air bubbles going in the pool while the pump is on , any advice would be appreciated Sir !!Thanks in Advance !!

@HallmarkPoolSupplies 10 месяцев назад

I would check your o-ring and your lid. You want to make sure that you have a good air tight seal, if not you will suck air. Also check and make sure nothing is cracked (lid, housing etc.) Thanks for watching.

@jamesconn1104 10 месяцев назад

Thank You Sir , i will !!@@HallmarkPoolSupplies

@salazar2460able Месяц назад

Do u have a part number for a seal kit like u had rather then buying them separately?

@HallmarkPoolSupplies Месяц назад

Here is the link for the seal set for a Pentair Dynamo pool pump. Thanks for watching. www.hallmarkpoolsupplies.com/p-3871-58-mechanical-shaft-seal.aspx

@tonyahidalgo7400 Год назад

Where can I purchase the seal kit?

@HallmarkPoolSupplies Год назад

I do sell the shaft seal set on my website, the link is in the description down below.

@Haywardpowerflolx 4 месяца назад

The Pentair dynamo pool pump is discontinued from Pentair

@rreg0321 Год назад

I brought it to a shop and they replaced pump seals and o ring and inspected everything and said it’s as good as new. Got home hooked it up and still leaks. Other than $500 for a new pump anything else I could try?

@HallmarkPoolSupplies Год назад

Check all gaskets or o-rings for damage, I would also check the housing body or the diffuser bracket for any cracks. Thanks for watching.

@yvettelucy9831 Год назад

Our lid won't fit back on all the way. Do we have to lubricate the seal?

@HallmarkPoolSupplies Год назад

Lubricating the o-ring is recommended, it will make it easier to put the lid on and take it off, it also adds life to the o-ring.

@russellchevalier3606 Год назад

Silicone lube from the plumbing section of the local hardware store, or from a diving shop (much more expensive).

@LisaStewart-hb7tg Месяц назад

What size o ring does it use mines been leaking oool Place did not tell me I needed a o ring

@HallmarkPoolSupplies Месяц назад

Which o-ring are you referring to?

@LisaStewart-hb7tg Месяц назад

The one that goes on the motor thing for u put strainer pot basket on where u screw it from the motor was the last one u put on then the basket on that one mine leaks there and don’t have a o ring did not know u had to have one til I seen this so gonna try to see if it will fix mine

@HallmarkPoolSupplies Месяц назад

I believe l know which o-ring you are referring to, here is the link for this o-ring. To make sure, email your contact info and l will be glad to help. My email is on my RU-vid channel. Thanks www.hallmarkpoolsupplies.com/p-3723-slide-valve-plug-bulkhead-oring.aspx

@HairstylistHoneyjones Год назад

Can I order these seals on this same pump?

@HallmarkPoolSupplies Год назад

Yes, here is the link for the seals on the Pentair Dynamo pump. Thanks for watching. www.hallmarkpoolsupplies.com/p-3871-58-mechanical-shaft-seal.aspx

@sheilahanna7912 Год назад

My pump just like that one hums when turn on why is that??

@HallmarkPoolSupplies Год назад

You need to check the mechanical contact switch (starter) inside the motor. You have to remove the back cover plate. This contact may be stuck, you can pull lightly on the copper tab to separate, when doing so make sure the power is off. This contact is shaped like a V. This should work, if not you may need to take your pump to a motor repair shop. If you need help or have any questions feel free to contact me and I will be glad to help.