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The cart I used was a super heavy Milwaukee. I’ll update the link to the aluminum one I used for the new build, video coming soon. It has plenty of cross members

Glad it was helpful!

Thanks! Glad I could help. I’ll be honest, I’ve done hours and hours of wood cleaning research but have only done a handful of jobs. So far we like: Light growth - Sodium Percarbonate Heavier - Sodium Metasilicate Then we neutralize either one with oxalic acid. Have done no cedar thus far but I’ve heard good things about Green Ox Renew

Thank you! Hope it helped

Glad it was helpful! We’ll keep trying to put out as much free educational stuff as we can

Unfortunately neither. We’ve got great pressure and flow in our area. You’d just make a splitter though from the sediment filter to both RO membranes. Then run both outlets to another tee and into the DI tank. I would run the discharge on both to a common line through the same valve just so you only have one to adjust each time. Booster pump you can reference other builds but I’m assuming it would go in line right after the sediment filter.

It was free at the time of filming. I did have to make a free account and then deny all the offers, but it gives you a few trial tokens

Original DI tank is still running strong. It was honestly way overkill for our area and incoming TDS but we don’t clean windows everyday either. I would actually suggest getting the resin at Windowcleaner.com and they also sell a smaller DI cartridge.

Thank you! And yes it does, always!

Just use a center punch to mark the hole and then a standard drill and drill bit. It’s steel but it’s fairly thin and easy to drill through

I always like to err on the side of larger tube and fittings, since the fittings are your choke point for flow. I built this system with 3/4” on the pure water side and you can use smaller for the RO discharge

You’re welcome! It’s served us well so I hope it’ll work great for you too.

At the time I built it, it was right around $1000 for the cart. A comparable cart from anywhere else is ~$2k+

Glad it was helpful!

Glad it was helpful!

I get just over a gallon a minute out of my setup on a 65 psi supply. To be safe, I would add a second RO membrane in parallel with the first for more flow.

​@@pressurewashnerds I will take note thank you.

You can wire it in wherever you’d like as long as it’s spanning positive 12V to ground. I’m assuming you want to measure battery voltage so I’d suggest running the wires direct from the screw terminals on your battery. Alternatively, you could add it in on the leads for your pump. The voltage should be identical in either spot.

@@pressurewashnerds Ok. so another question then, can i add another set of terminals on the battery then? because 10g wire is used for the initial setup but the voltage meter has really tiny wire. Like could i buy lil terminals that fit the battery and add them to the other two that are already on? (2 on neg and 2 on positive)? Hope this question makes sense lol. Appreciate you reaching out!

Thank you!! Glad you enjoyed!

Setting up and optimizing Google Business Page is key because it’s passive free leads. Then add google Guaranteed Local Service Ads. Networking, yard signs and door knocking are good to boost you at the start too

Great question. As a general rule, 4” per GPM but many people had used 20” with a 4GPM. It’s just a little less efficient than a 16 or 18, so you’d have to walk slower.

You’re welcome! Same initial filtering as the Pure but it’s got a higher flow RO membrane and DI tank than both of those options so you’ll probably end up with better flow out of this custom build than either one of those options.

Yeah, if your flow is too low you’d probably want to add a booster pump. Flow to a WFP in general isn’t going to be super high. Give it a try first on your own windows and see if you can adjust the RO bypass to get the flow you need.

3/8” diameter x 0.1” width

Thanks!

We have never had an issue with it. Typically with pre-wetting and minimizing overspray you never truly get any SH on the car. We are just being cautious!

That is also an option, although a very uncommon one!

@@pressurewashnerds if it saves you the trip, walking back to the truck, it should be more common!

That is awesome!! We appreciate you 👍

Glad it was helpful! We don’t believe in trade secrets. Let us know if there’s anything else you’d like to learn.

Most of the time, if there’s ALOT of oxidation, we will no quote the house. In the video, you can see my house hardly has any oxidation. If you’re staying far away, I’d try letting SH sit a little bit longer and then rinsing as normal. Chances are, they tried to clean it themselves before you or someone else created those lines a few years prior. All of which would be good things to have in your disclaimers as a CYA.

Depends where you are at in the country. Most of the homes we wash are wood fascia and vinyl soffit. Both of which can be cleaned (organic growth only) with the 1% vinyl house wash mixture. Hope this helps!

@@pressurewashnerds I am in The Bahamas, the soffit and fascia are both wood, thanks a million for the feedback my brother.

Why 40A breaker with 30A rated wire? Peak pull for the pump is also below 30A.

Haha glad you enjoyed it! I’ll be dropping a version 2 here soon that’s a little more lightweight. Original cart is still running strong though!

Yep! I didn’t cover it in the video but my water at the tap was around 350 tds, after RO was 18-40 depending on bypass, and post DI zero.

We are part of the groups that leaves it there. I’d say roughly 90% leave it and the others rinse. We do tell our customers that it’ll likely take 2-3 good rain events to knock all the dead growth down.

@@pressurewashnerds Thank you, do you have instagram?

3 nozzles at 4 gpm is an odd size. I think I’d try 1.5 orifice size at 25 degree if I were you. dylan22runge at gmail if you need anything.

At the end of the day, the single RO is always going to be the most restrictive. The Axeon membrane linked in this video was the highest flow at low pressure (garden hose) that I could find. But I think if you’re trying to feed a pressure washer, I’d look at running multiple RO membranes in parallel.

I believe around $1100 but you can reduce cost with smaller DI tank. Full parts list in description if you want to price things out

Thank you 🙌

You can try chemicals (pre-treat with 1-3% SH) to help kill the moss, then you might get lucky and go over the pavers once with your surface cleaner. That’s a trick we use if the flat work has a lot of organic build up.

@@pressurewashnerds I think the main issue is lack of pressure to remove so much moss and specially weeds. Is there a chance I can use smaller orifice fans, maybe 25 degree and 2 nozzles instead to increase that pressure or would it create too much back pressure?

Good question. I don’t believe the NEC requires grounding for DC systems less than 60VDC. I chose not to ground our system and just left it floating.

Totally depends on your incoming TDS and how low you can get the outgoing TDS from the RO membrane. Our TDS at the DI inlet is around 25 so our expected life is 5000+ gallons. There is a chart on the Window Cleaner website for the DI resin tank that shows expected life

Yes, there is no downside to rinsing first with a garden hose or similar, and then using the RO/DI system.

Yes, there is no downside to rinsing first with a garden hose or similar, and then using the RO/DI system.

Yes, there is no downside to rinsing first with a garden hose or similar, and then using the RO/DI system.

I believe around $1100 but cost can be reduced by downsizing the DI tank which is a bit overkill or using a less premium RO membrane. Full parts list in the description for accurate pricing.

Yes, we figured that out since the video. We keep plenty of O-Rings with us now!

25020 nozzles paired with a 16” surface cleaner would be perfect for you

Thank you!

Yes! For poles you can with a fiberglass or hybrid option. Check out the Gardiner brand from the Detroitsponge website. The only trade off is it’ll have a lot more flex than a carbon pole

Glad it was helpful! Goodluck!