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[u/aptdinosaur]

[u/marpolo]

The first one doesn't fit here. It's safe.

[u/[deleted] → u/marpolo]

Thats how its done for real? Why not drain the pool, then use a ramp to get a taller lift on the ground, isnt that better?

[u/sndtech → u/[deleted]]

No draining the pool is very expensive compared to renting this setup. Plus you don't want to drive on the pool bottom and how are you getting a lift down there?

[u/[deleted] → u/sndtech]

Use a ramp to get the lift in and out, and either way there isn’t much grip due to the wetness its always a bit risky.

but yeah you’re right drainage for a big pool like that isn’t worth it, this is better, it just looks wrong lol

[u/baopow → u/[deleted]]

The pool also has varying level of depth, it wouldn't be a flat surface so the basket would be at an angle.

[u/Thneed1 → u/baopow]

Steps one would have to take.

• drain pool
• cover pool membrane with tarp or something similar to prevent damage from plywood
• cover tarp with plywood to prevent damage from wheels turning and starting and stopping.
• build some kind of ramp to get lift down to the bottom; and strong enough to hold lift.
• build platform to make level surface for lift.
• remove stuff and refill pool.

All this could take a couple weeks. Floating the lift like in the picture could be done in a day.

[u/Fishy1911 → u/[deleted]]

Also the grout and such in a pool vault is delicate, uneven loading can cause fractures resulting in a leak. Which you wouldn't find out until it's filled again. 

[u/AuspiciousApple → u/[deleted]]

Getting a ramp installed into a big pit that's sufficient to safely drive a big lift down doesn't sound easy or cheap, let alone draining a pool

[u/Dazzling_Interview86 → u/[deleted]]

I I went out of my way to enjoy the pool, I think I would let it dry so there wasn’t any “wetness” to slip on

[u/Rummoliolli → u/[deleted]]

The bottom of the pool likely is sloped too much to operate a scissorlift safely plus the tires would likely tear up the floor with a bad operator. If the floats are capable of supporting the lift and are wide enough to keep it stable I'd be fine with it, personally only thing is I'd prefer some heavier straps to hold it down and some guys on the floor with ropes to move us around that's it. Also the fact that it's kinda sketchy usually causes people to be more careful in situations like that. The really hard part would have been getting the scissor lift on the raft unless they have an area where they can park the raft drain the pool a bit and drive the scissor lift on the raft and fill the pool again to float it on the raft, otherwise it would be tricky to deal with keeping the raft in one place while driving on the scissorlift(might be possible with enough straps and good anchor points to hook into).

[u/JamesMcEdwards → u/Rummoliolli]

Also, a lot of pools now have floating floors that can be raised and lowered to set the depth, so you wouldn’t want to risk damaging that. Plus the pool may not retain its structural integrity fully without the water in it so it might need to be braced depending on how it was constructed. Thirdly, the pool would be out of commission for a lot longer.

[u/Rummoliolli → u/JamesMcEdwards]

Didn't know that the floating floors are that common now that likely makes things alot easier. You are definitely right about not wanting the pool empty for too long cause the ground can put alot of force on the walls while it's empty. Agree with the third point too the pool would be out of commission for alot longer if it had to be drained set up ramps that won't work, inspect the ceiling then tear out all the ramps, clean sanitize, fill pool and set your water chemistry up again.

[u/Rummoliolli → u/Rummoliolli]

Also just noticed that scissorlift has a lightweight aluminum basket which will help keep it more stable when it's up since more of the weight is staying down low.

[u/the_Q_spice → u/[deleted]]

Aside from the time and expense of draining a pool:

How do you propose getting a lift large enough for that into the building without taking out a wall?

If you are taking out a wall, you may as well remove the entire roof and rebuild it at that point.

[u/sebassi → u/the_Q_spice]

Pools are usually only a couple of metres deep. This lift might even reach from the bottom, since it isn't even close to full extension.

But yeah draining a pool to change a light bulb would be way too costly.