If you can maintain your floor in a regular right way, the heavy stains and deep scratches can be avoided. When we talk about deep cleaning, it means taking your time and lots of money. So we'd suggest you make a scientific floor care solution and plan to save your time and expenditure in the long-term run.   Deep cleaning usually happens with these problems, 1. Deep scratches 2. Oil residues 3. Sticking drink residues 4. Black tire marks   In this case, the daily cleaning solution can't help out.   So how to choose the right cleaning machines and consumables? Step 1 Look at your Floor Type Step 2 Know the area to be cleaned Step 3 Identify the stains problems Step 4 Choose the right machines and consumables   For example, if the problems happened on hard floors like polished concrete floors, terrazzo floors, or stone floors,   For the small area,   we recommend the single disc machine with wights like TF-1517P, with 174 RPM and heavy brush pressure, you will easily remove the hard scratches. Besides, TF-1517S, the square floor orbital machine is another good option, with 1740 oscillating times/minute, you can very fast remove the stains or scratches to deliver a clean surface. And TF-1517S can well clean the corner along the side so you don't need people to clean them again compared with a single disc machine.   If it's only oil or drinks residues, you can use hard brushes (PP Diameter 0.6mm) to clean the floor. But if it's scratched, we will recommend deep-cleaning diamond pads.    Option 1 TF-1517P  + Hard Brushes or Deep-cleaning Black Floor Pad or Diamond Floor Pad + Floor Cleaner  Cleaning routes: 6-8 passes with water, wet use Option 2  TF-1517S + Deep-cleaning Black Floor Pad or Diamond Floor Pad + Floor Cleaner  Cleaning routes: 6-8 passes with water, wet use   For big areas, T150, the ride-on auto floor scrubber machine, is good for deep cleaning cases. With a 150L solution tank and 170L recovery tank, they can consistently clean the floor for 4 to 6.5 hours. With 220RPM and 25-85KG brush pressure, it can effectively clean your surface. You can choose roller brushes, disc brushes or pad holders with pads to complete the job.   Option 1  T150 + Hard Brushes (Disc Brush PP 0.6mm) or Deep-cleaning Black Floor Pad or Diamond Floor Pad + Floor Cleaner  Cleaning routes: 8-10 passes with water, wet use Option 2 T150 + Hard Brushes (Roller Brush PBT) + Floor Cleaner Cleaning routes: 8-10 passes with water, wet use   If it's resilient floors like PVC, VCT, Linoleum, and epoxy resin floors, we don't recommend aggressive hard brushes such as the material PP 0.6mm and PBT.  But you can still using the black deep cleaning pads and diamond floor pads.   Besides, if the you want to deep clean the ceramic tile floors,    For small areas, we recommend  TF-1517P or TF-1517S + Melamine Pad + Floor Cleaner Cleaning routes: 6-8 p...