balcony grouting

Hi. I have zero experience with this so please pardon some basic questions.... I have a 4" x 8" clay brick patio without mortar that is subsiding in the center. There is virtually no space between bricks. A spirit level indicates that the far end (away from the house) slopes back toward the house, in part. And part of it is level. My goal would be to reset the bricks in the problem area so that it slopes downward away from the house to correct it, [img]https://cimg1.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1838x1210/screen_shot_2022_10_30_at_5_36_36_pm_28a04cbb7a17c719ef06554f526663dbcda5f2e1.png[/img] [img]https://cimg2.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1856x1208/screen_shot_2022_10_30_at_5_36_14_pm_0a499106e1ef8f13a1200757b2a47e5c29e41530.png[/img] and then prevent/delay settling in the future I assumed that there was sand beneath it so I bought three bags of sand, took out a brick and found 3/4" gravel. Questions: 1. Can sand and gravel be combined to any positive effect? 2. Is a hand tamper adequate over an area of about 80 square feet? 3. Does it make sense to finish with polymeric sand over part, but not all, of the patio? 4.For an area this size do I need rails and a screed board? 5. If I need a [u]small[/u] amount of additional gravel, is there a way to get it without purchasing a half cubic yard or whatever? Thank you very much for any help you can provide!!!! [img]https://cimg3.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1856x1208/screen_shot_2022_10_30_at_5_36_14_pm_bde5ac3f8d7bb4fa3dbbf841c204f9a0ca1a00b5.png[/img] [img]https://cimg4.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1838x1210/screen_shot_2022_10_30_at_5_36_36_pm_1f068de0c49d3069ac6f081f65d3a51e9f5ef606.png[/img]

I want to cut a hole in the attached garage floor, dig it out and cut a hole in the basement wall so I can hoist heavy things into the basement. any thoughts?