Gary, we're sorry to hear there were clumps in your Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food. We'd like to gather some additional information and assist you with our product guarantee: https://tinyurl.com/y8nvfsca

We are sorry to hear about your experience with the Scotts Turf Builder Lawn Food. This product does not control weeds. We recommend using Spot Weed Control For Lawns Ready-to-Use, to control the weeds in your lawn. If you are still unhappy with the product, you can reach us at https://tinyurl.com/y8nvfsca to discuss our product guarantee.

We hate to hear that your lawn is burned after using Scotts Turf Builder Lawn Food. This product has proven to be a good product and has been thoroughly tested on the grass varieties listed on the label when applied according to label directions. Damage can occur if products are accidentally over applied or applied to drought and heat stressed turf. This type of damage can sometimes be minimized by watering 1/2 inch every 3 days if rain is not expected. We suggest that you follow this program for the next 4 weeks if you do not receive sufficient rainfall. We also recommend that you do not apply any other product for the next 4 weeks while your lawn tries to recover from this situation. Be aware that issues such as lawn disease or insects feeding are often mistaken for product damage. You may want to take a sample of the damaged area to a reputable nursery to rule these out. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience please contact us to see what can be done. You may visit our contact page by clicking on the following link http://tinyurl.com/7ag7a3n