This sentence is an example of faulty parallelism.
a.) my grandmother not only planted a garden but also a bed of flowers.
b.) the flowers my grandmother planted are azaleas, marigolds, and peonies.
c.) i believe that gardening is a good hobby for some people but that it would not be a fun hobby for me.
d.) my grandmother enjoys planting seeds, watering plants, and weeding the garden.

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long  

the best practice

1. keep your workspace clean

2. wash your hands

3. seperate and clean chemicals and equipment

4.   use microfiber cleaning utensils

5. clean and sanitize all work surfaces

hope this !