So i just got a new rack that was supposed to hold 1 v35s tub and 1 v18 tub. Well the shelf was too short so it will hold the v18 tubs but not the v35s tub unless it is sideways. i was wondering is there a way i can either cover the v35s tub so i can use the rack as i would like or can i add some xpvc to the shelves. i really needed a dual tub rack and cant afford to buy a whole new rack. Thank you