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Need Input from Paver Experts

Old 08-29-2017, 05:26 AM
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I've got the typical, standard paver decking on my patio, surrounding a free-form pool with lots of curves. Some areas of the deck around the coping have a gap that of course is normally filled during the sanding process. I've re-sanded the deck twice now with regular sand, and just can't keep the sand in place. It was wetted down with a sealer both times, but I'm not able to seal the deck again because it's far too soon. I actually used a syringe to directly apply sealer just to the sand, but it's still disappearing from the gaps.

I know there are some disadvantages to using Polymeric sand, particularly if you need to lift pavers at some point, but I'm wondering if this would be a better route for the areas that I can't keep sanded. The Polymeric sand sets with water, so I wouldn't have to worry about over-sealing the deck and causing that white, cloudiness, which I already have on the coping.

Thoughts?
Old 08-29-2017, 05:31 AM
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There is no disadvantage to polymeric sand. It is not like mortar at all. It is what I have around my pool. It does need to be replenished occasionally.

I would use a wet dry vac to suck out some of the regular sand and broom in polymeric.

The best way to bed the sand is using a plate compactor to vibrate it in then sweep in some more.
Old 08-29-2017, 05:41 AM
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Polymeric sand is great.
Clean joints thoroughly or the best you can.
Install on a super dry day or days. Very important or it will leave a haze.
Clean and sweep and blow before misting with water.

I did my walk ways with it 5 years ago and it has held up well.
Old 08-29-2017, 06:02 AM
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Do you think the sand is "running" out the edges of the patio? Or is it possibly "draining" away from below?
I think you have to figure out where it's going first.

My patio pavers are 1" thick, and the they're over the top of an existing chatahoochee deck. The edge pavers are concreted to the chatahoochee deck, and sand doesn't escape.

My driveway is 2" pavers over a "road bed" (which is standard), and there is a small concrete border around the entire edge about halfway up the pavers to hold them in place. This also prevents sand from running out the edges of the driveway.
Old 08-29-2017, 06:10 AM
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Grout is what I used in some areas of my travertine.
Old 08-29-2017, 07:37 AM
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Originally Posted by Jus Teasin View Post
Do you think the sand is "running" out the edges of the patio? Or is it possibly "draining" away from below?
I think you have to figure out where it's going first.
I'm trying to recall if the area that's losing sand was laid over an existing concrete patio, or if it was an area that we had to remove the concrete and build it up with crushed concrete. I think perhaps you might be on to something. I bet the sand is working its way down into an area of crushed concrete. That being the case, rinse and repeat, or go with Polymeric so it won't drain through the pavers? Or will that drain as well?

Hmmm....
Old 08-29-2017, 09:30 AM
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My paver installers used a lousy brown color polymeric sand to fill the joint around the ivory pool coping, so after they finished the job, I special ordered the correct ivory color, scraped out the entire joint, and re-sanded it. You can see the special tool I made to ease the process. That, along with a screw driver, got 'er done.

Originally Posted by Commocean View Post
I know there are some disadvantages to using Polymeric sand, particularly if you need to lift pavers at some point, but ...
Once your re-wet it, it may be removed. Tedious ... but doable.

Originally Posted by Commocean View Post
... or go with Polymeric so it won't drain through the pavers? Or will that drain as well?
As you know, once it sets up it's quite solid so it shouldn't wash out. When filling a joint, I tap the surrounding pavers so that the sand settles down to completely fill the joint. Follow the directions and wet it out a couple of times and it ain't going nowhere ... unless of course you want it to.
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Old 08-29-2017, 10:26 AM
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Power washer will remove polymeric sand.

I would use it. Much easier to keeps weeds out.
Old 08-29-2017, 11:12 AM
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I'm not a paver expert, but have done a few walkways and a patio.
I always use polymeric and you can still replace a paver down the road if you need to.
It also keeps weeds out and discourages some bugs.
Old 08-29-2017, 12:39 PM
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OK, I'm going to try Polymeric in the few areas that keep washing out.

I'm not ready for a complete re-sanding!

Thanks everyone!

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